diff --git a/benchmark/createBenchmark.js b/benchmark/createBenchmark.js
index 64b0b562379..96d10aee3b9 100644
--- a/benchmark/createBenchmark.js
+++ b/benchmark/createBenchmark.js
@@ -15,7 +15,7 @@ webpack(
 		},
 		plugins: [
 			new webpack.NamedModulesPlugin(),
-			new webpack.IgnorePlugin(/^(fsevents|uglify-js)$/),
+			new webpack.IgnorePlugin(/^(fsevents|terser)$/),
 			new webpack.NormalModuleReplacementPlugin(
 				/^.\/loadLoader$/,
 				path.resolve(__dirname, "./createBenchmark/loadLoader")
diff --git a/examples/code-splitted-css-bundle/README.md b/examples/code-splitted-css-bundle/README.md
index 1552a655f1d..655e620a5d2 100644
--- a/examples/code-splitted-css-bundle/README.md
+++ b/examples/code-splitted-css-bundle/README.md
@@ -101,7 +101,7 @@ Child extract-text-webpack-plugin ../../node_modules/extract-text-webpack-plugin
          + 1 hidden module
 ```
 
-## Minimized (uglify-js, no zip)
+## Minimized (terser, no zip)
 
 ```
 Hash: edbe0e91ba86d814d855
diff --git a/lib/WebpackOptionsDefaulter.js b/lib/WebpackOptionsDefaulter.js
index def82855a43..b6e69ef98f5 100644
--- a/lib/WebpackOptionsDefaulter.js
+++ b/lib/WebpackOptionsDefaulter.js
@@ -302,10 +302,10 @@ class WebpackOptionsDefaulter extends OptionsDefaulter {
 		this.set("optimization.minimizer", "make", options => [
 			{
 				apply: compiler => {
-					// Lazy load the uglifyjs plugin
-					const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
+					// Lazy load the Terser plugin
+					const TerserPlugin = require("terser-webpack-plugin");
 					const SourceMapDevToolPlugin = require("./SourceMapDevToolPlugin");
-					new UglifyJsPlugin({
+					new TerserPlugin({
 						cache: true,
 						parallel: true,
 						sourceMap:
diff --git a/package.json b/package.json
index c8a000e1720..7aa95a6fa2f 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "node-libs-browser": "^2.0.0",
     "schema-utils": "^0.4.4",
     "tapable": "^1.1.0",
-    "uglifyjs-webpack-plugin": "^1.2.4",
+    "terser-webpack-plugin": "^1.1.0",
     "watchpack": "^1.5.0",
     "webpack-sources": "^1.3.0"
   },
diff --git a/test/TestCases.template.js b/test/TestCases.template.js
index 622b6e2b934..fbcfc55414f 100644
--- a/test/TestCases.template.js
+++ b/test/TestCases.template.js
@@ -5,14 +5,14 @@ const path = require("path");
 const fs = require("fs");
 const vm = require("vm");
 const mkdirp = require("mkdirp");
-const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
+const TerserPlugin = require("terser-webpack-plugin");
 const checkArrayExpectation = require("./checkArrayExpectation");
 const createLazyTestEnv = require("./helpers/createLazyTestEnv");
 
 const Stats = require("../lib/Stats");
 const webpack = require("../lib/webpack");
 
-const uglifyJsForTesting = new UglifyJsPlugin({
+const terserForTesting = new TerserPlugin({
 	cache: false,
 	parallel: false,
 	sourceMap: true
@@ -31,12 +31,12 @@ const DEFAULT_OPTIMIZATIONS = {
 	concatenateModules: false,
 	namedModules: false,
 	hashedModuleIds: false,
-	minimizer: [uglifyJsForTesting]
+	minimizer: [terserForTesting]
 };
 
 const NO_EMIT_ON_ERRORS_OPTIMIZATIONS = {
 	noEmitOnErrors: false,
-	minimizer: [uglifyJsForTesting]
+	minimizer: [terserForTesting]
 };
 
 const casesPath = path.join(__dirname, "cases");
diff --git a/test/__snapshots__/StatsTestCases.test.js.snap b/test/__snapshots__/StatsTestCases.test.js.snap
index 37f76f4b387..62b1739f57f 100644
--- a/test/__snapshots__/StatsTestCases.test.js.snap
+++ b/test/__snapshots__/StatsTestCases.test.js.snap
@@ -777,35 +777,35 @@ Child undefined:
     bundle.js  2.89 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
     
-    WARNING in UglifyJs Plugin: Dropping side-effect-free statement [./index.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping side-effect-free statement [./index.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0] in bundle.js
-Child UglifyJs:
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]
+Child Terser:
     Hash: 8d381ad7d9791ae0d2ff
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
     bundle.js  2.89 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
-Child /UglifyJs/:
+Child /Terser/:
     Hash: 8d381ad7d9791ae0d2ff
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
@@ -819,14 +819,14 @@ Child warnings => true:
         Asset      Size  Chunks             Chunk Names
     bundle.js  2.89 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
-Child [UglifyJs]:
+Child [Terser]:
     Hash: 8d381ad7d9791ae0d2ff
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
     bundle.js  2.89 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
-Child [/UglifyJs/]:
+Child [/Terser/]:
     Hash: 8d381ad7d9791ae0d2ff
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
@@ -848,27 +848,27 @@ Child should not filter:
     bundle.js  2.89 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
     
-    WARNING in UglifyJs Plugin: Dropping side-effect-free statement [./index.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping side-effect-free statement [./index.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]
 Child /should not filter/:
     Hash: 8d381ad7d9791ae0d2ff
     Time: Xms
@@ -877,27 +877,27 @@ Child /should not filter/:
     bundle.js  2.89 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
     
-    WARNING in UglifyJs Plugin: Dropping side-effect-free statement [./index.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping side-effect-free statement [./index.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]
 Child warnings => false:
     Hash: 8d381ad7d9791ae0d2ff
     Time: Xms
@@ -906,27 +906,27 @@ Child warnings => false:
     bundle.js  2.89 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
     
-    WARNING in UglifyJs Plugin: Dropping side-effect-free statement [./index.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping side-effect-free statement [./index.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]
 Child [should not filter]:
     Hash: 8d381ad7d9791ae0d2ff
     Time: Xms
@@ -935,27 +935,27 @@ Child [should not filter]:
     bundle.js  2.89 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
     
-    WARNING in UglifyJs Plugin: Dropping side-effect-free statement [./index.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping side-effect-free statement [./index.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]
 Child [/should not filter/]:
     Hash: 8d381ad7d9791ae0d2ff
     Time: Xms
@@ -964,27 +964,27 @@ Child [/should not filter/]:
     bundle.js  2.89 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
     
-    WARNING in UglifyJs Plugin: Dropping side-effect-free statement [./index.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping side-effect-free statement [./index.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]
 Child [warnings => false]:
     Hash: 8d381ad7d9791ae0d2ff
     Time: Xms
@@ -993,27 +993,27 @@ Child [warnings => false]:
     bundle.js  2.89 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
     
-    WARNING in UglifyJs Plugin: Dropping side-effect-free statement [./index.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping side-effect-free statement [./index.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction1 [./index.js:8,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction2 [./index.js:9,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction3 [./index.js:10,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction4 [./index.js:11,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someUnUsedFunction5 [./index.js:12,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction1 [./a.js:3,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction2 [./a.js:4,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction3 [./a.js:5,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0] in bundle.js
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     
-    WARNING in UglifyJs Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0] in bundle.js"
+    WARNING in Terser Plugin: Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]"
 `;
 
 exports[`StatsTestCases should print correct stats for graph-correctness-entries 1`] = `
@@ -3040,7 +3040,7 @@ Entrypoint main = bundle.js
      [no exports used]"
 `;
 
-exports[`StatsTestCases should print correct stats for warnings-uglifyjs 1`] = `
+exports[`StatsTestCases should print correct stats for warnings-terser 1`] = `
 "Hash: 5ddef8e3e0b2f2c278c4
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
@@ -3051,13 +3051,13 @@ Entrypoint main = bundle.js
 [1] ./a.js 249 bytes {0} [built]
 [2] (webpack)/buildin/module.js 497 bytes {0} [built]
 
-WARNING in UglifyJs Plugin: Dropping unused function someUnRemoteUsedFunction1 [./a.js:3,0] in bundle.js
+WARNING in Terser Plugin: Dropping unused function someUnRemoteUsedFunction1 [./a.js:3,0]
 
-WARNING in UglifyJs Plugin: Dropping unused function someUnRemoteUsedFunction2 [./a.js:4,0] in bundle.js
+WARNING in Terser Plugin: Dropping unused function someUnRemoteUsedFunction2 [./a.js:4,0]
 
-WARNING in UglifyJs Plugin: Dropping unused function someUnRemoteUsedFunction3 [./a.js:5,0] in bundle.js
+WARNING in Terser Plugin: Dropping unused function someUnRemoteUsedFunction3 [./a.js:5,0]
 
-WARNING in UglifyJs Plugin: Dropping unused function someUnRemoteUsedFunction4 [./a.js:6,0] in bundle.js
+WARNING in Terser Plugin: Dropping unused function someUnRemoteUsedFunction4 [./a.js:6,0]
 
-WARNING in UglifyJs Plugin: Dropping unused function someUnRemoteUsedFunction5 [./a.js:7,0] in bundle.js"
+WARNING in Terser Plugin: Dropping unused function someUnRemoteUsedFunction5 [./a.js:7,0]"
 `;
diff --git a/test/cases/parsing/optional-catch-binding/test.filter.js b/test/cases/parsing/optional-catch-binding/test.filter.js
index 172fad5af93..a09b8642687 100644
--- a/test/cases/parsing/optional-catch-binding/test.filter.js
+++ b/test/cases/parsing/optional-catch-binding/test.filter.js
@@ -1,7 +1,7 @@
 const supportsOptionalCatchBinding = require("../../../helpers/supportsOptionalCatchBinding");
 
 module.exports = function(config) {
-	// XXX: Disable this test if UglifyJS is used because it does not support ES 2019
+	// XXX: Disable this test if Terser is used because it does not support ES 2019
 	if (config.mode === "production") {
 		return false;
 	}
diff --git a/test/checkArrayExpectation.js b/test/checkArrayExpectation.js
index 353f3df780b..4e967de78ba 100644
--- a/test/checkArrayExpectation.js
+++ b/test/checkArrayExpectation.js
@@ -17,7 +17,7 @@ module.exports = function checkArrayExpectation(
 	}
 	let array = object[`${kind}s`].slice().sort();
 	if (kind === "warning")
-		array = array.filter(item => !/from UglifyJs/.test(item));
+		array = array.filter(item => !/from Terser/.test(item));
 	if (fs.existsSync(path.join(testDirectory, `${filename}.js`))) {
 		const expectedFilename = path.join(testDirectory, `${filename}.js`);
 		const expected = require(expectedFilename);
diff --git a/test/configCases/plugins/source-map-dev-tool-plugin/webpack.config.js b/test/configCases/plugins/source-map-dev-tool-plugin/webpack.config.js
index 1943817ed59..59bb25d2a16 100644
--- a/test/configCases/plugins/source-map-dev-tool-plugin/webpack.config.js
+++ b/test/configCases/plugins/source-map-dev-tool-plugin/webpack.config.js
@@ -1,5 +1,5 @@
 var webpack = require("../../../../");
-var UglifyJsPlugin = require("uglifyjs-webpack-plugin");
+var TerserPlugin = require("terser-webpack-plugin");
 module.exports = {
 	node: {
 		__dirname: false,
@@ -14,7 +14,7 @@ module.exports = {
 	},
 	optimization: {
 		minimizer: [
-			new UglifyJsPlugin({
+			new TerserPlugin({
 				sourceMap: true
 			})
 		]
diff --git a/test/configCases/plugins/uglifyjs-plugin/compress.js b/test/configCases/plugins/terser-plugin/compress.js
similarity index 100%
rename from test/configCases/plugins/uglifyjs-plugin/compress.js
rename to test/configCases/plugins/terser-plugin/compress.js
diff --git a/test/configCases/plugins/uglifyjs-plugin/extract.js b/test/configCases/plugins/terser-plugin/extract.js
similarity index 100%
rename from test/configCases/plugins/uglifyjs-plugin/extract.js
rename to test/configCases/plugins/terser-plugin/extract.js
diff --git a/test/configCases/plugins/uglifyjs-plugin/ie8.js b/test/configCases/plugins/terser-plugin/ie8.js
similarity index 100%
rename from test/configCases/plugins/uglifyjs-plugin/ie8.js
rename to test/configCases/plugins/terser-plugin/ie8.js
diff --git a/test/configCases/plugins/uglifyjs-plugin/index.js b/test/configCases/plugins/terser-plugin/index.js
similarity index 100%
rename from test/configCases/plugins/uglifyjs-plugin/index.js
rename to test/configCases/plugins/terser-plugin/index.js
diff --git a/test/configCases/plugins/uglifyjs-plugin/test.js b/test/configCases/plugins/terser-plugin/test.js
similarity index 100%
rename from test/configCases/plugins/uglifyjs-plugin/test.js
rename to test/configCases/plugins/terser-plugin/test.js
diff --git a/test/configCases/plugins/uglifyjs-plugin/vendors.js b/test/configCases/plugins/terser-plugin/vendors.js
similarity index 100%
rename from test/configCases/plugins/uglifyjs-plugin/vendors.js
rename to test/configCases/plugins/terser-plugin/vendors.js
diff --git a/test/configCases/plugins/uglifyjs-plugin/webpack.config.js b/test/configCases/plugins/terser-plugin/webpack.config.js
similarity index 80%
rename from test/configCases/plugins/uglifyjs-plugin/webpack.config.js
rename to test/configCases/plugins/terser-plugin/webpack.config.js
index bc737f8e767..8a1d3397503 100644
--- a/test/configCases/plugins/uglifyjs-plugin/webpack.config.js
+++ b/test/configCases/plugins/terser-plugin/webpack.config.js
@@ -1,4 +1,4 @@
-const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
+const TerserPlugin = require("terser-webpack-plugin");
 module.exports = {
 	node: {
 		__dirname: false,
@@ -17,21 +17,21 @@ module.exports = {
 	optimization: {
 		minimize: true,
 		minimizer: [
-			new UglifyJsPlugin({
+			new TerserPlugin({
 				cache: false,
 				parallel: false,
 				exclude: ["vendors.js", "extract.js"]
 			}),
-			new UglifyJsPlugin({
+			new TerserPlugin({
 				cache: false,
 				parallel: false,
 				extractComments: true,
 				include: ["extract.js"]
 			}),
-			new UglifyJsPlugin({
+			new TerserPlugin({
 				cache: false,
 				parallel: false,
-				uglifyOptions: {
+				terserOptions: {
 					compress: {
 						passes: 2
 					}
diff --git a/test/statsCases/filter-warnings/webpack.config.js b/test/statsCases/filter-warnings/webpack.config.js
index ae23fcd948d..a6d75daffb5 100644
--- a/test/statsCases/filter-warnings/webpack.config.js
+++ b/test/statsCases/filter-warnings/webpack.config.js
@@ -1,4 +1,4 @@
-const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
+const TerserPlugin = require("terser-webpack-plugin");
 const baseConfig = {
 	mode: "production",
 	entry: "./index",
@@ -8,9 +8,9 @@ const baseConfig = {
 	optimization: {
 		minimize: true,
 		minimizer: [
-			new UglifyJsPlugin({
+			new TerserPlugin({
 				sourceMap: true,
-				uglifyOptions: {
+				terserOptions: {
 					compress: {
 						warnings: true
 					},
@@ -34,11 +34,11 @@ const baseConfig = {
 
 module.exports = [
 	undefined,
-	"UglifyJs",
-	/UglifyJs/,
+	"Terser",
+	/Terser/,
 	warnings => true,
-	["UglifyJs"],
-	[/UglifyJs/],
+	["Terser"],
+	[/Terser/],
 	[warnings => true],
 	"should not filter",
 	/should not filter/,
diff --git a/test/statsCases/warnings-uglifyjs/a.js b/test/statsCases/warnings-terser/a.js
similarity index 100%
rename from test/statsCases/warnings-uglifyjs/a.js
rename to test/statsCases/warnings-terser/a.js
diff --git a/test/statsCases/warnings-uglifyjs/index.js b/test/statsCases/warnings-terser/index.js
similarity index 100%
rename from test/statsCases/warnings-uglifyjs/index.js
rename to test/statsCases/warnings-terser/index.js
diff --git a/test/statsCases/warnings-uglifyjs/webpack.config.js b/test/statsCases/warnings-terser/webpack.config.js
similarity index 77%
rename from test/statsCases/warnings-uglifyjs/webpack.config.js
rename to test/statsCases/warnings-terser/webpack.config.js
index 2bdb59940cf..19487004ac8 100644
--- a/test/statsCases/warnings-uglifyjs/webpack.config.js
+++ b/test/statsCases/warnings-terser/webpack.config.js
@@ -1,4 +1,4 @@
-const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
+const TerserPlugin = require("terser-webpack-plugin");
 module.exports = {
 	mode: "production",
 	entry: "./index",
@@ -8,9 +8,9 @@ module.exports = {
 	optimization: {
 		minimize: true,
 		minimizer: [
-			new UglifyJsPlugin({
+			new TerserPlugin({
 				sourceMap: true,
-				uglifyOptions: {
+				terserOptions: {
 					compress: {
 						warnings: true
 					},
@@ -21,7 +21,7 @@ module.exports = {
 					},
 					warnings: true
 				},
-				warningsFilter(filename) {
+				warningsFilter(message, filename) {
 					return /a\.js$/.test(filename);
 				}
 			})
diff --git a/yarn.lock b/yarn.lock
index c2ffa9a6564..43ea066d9e2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -344,6 +344,11 @@ acorn@^5.0.3, acorn@^5.6.0, acorn@^5.6.2:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.2.tgz#91fa871883485d06708800318404e72bfb26dcc5"
   integrity sha512-cJrKCNcr2kv8dlDnbw+JPUGjHZzo4myaxOLmpOX8a+rgX94YeTcTMv/LFJUSByRpc+i4GgVnnhLxvMu/2Y+rqw==
 
+ajv-errors@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/ajv-errors/-/ajv-errors-1.0.0.tgz#ecf021fa108fd17dfb5e6b383f2dd233e31ffc59"
+  integrity sha1-7PAh+hCP0X37Xms4Py3SM+Mf/Fk=
+
 ajv-keywords@^3.1.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.2.0.tgz#e86b819c602cf8821ad637413698f1dec021847a"
@@ -892,11 +897,16 @@ binary-extensions@^1.0.0:
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.11.0.tgz#46aa1751fb6a2f93ee5e689bb1087d4b14c6c205"
   integrity sha1-RqoXUftqL5PuXmibsQh9SxTGwgU=
 
-bluebird@^3.5.0, bluebird@^3.5.1, bluebird@^3.5.x:
+bluebird@^3.5.0, bluebird@^3.5.x:
   version "3.5.1"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.1.tgz#d9551f9de98f1fcda1e683d17ee91a0602ee2eb9"
   integrity sha512-MKiLiV+I1AA596t9w1sQJ8jkiSr5+ZKi0WKrYGUn6d1Fx+Ij4tIj+m2WMQSGczs5jZVxV339chE8iwk6F64wjA==
 
+bluebird@^3.5.1:
+  version "3.5.3"
+  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.3.tgz#7d01c6f9616c9a51ab0f8c549a79dfe6ec33efa7"
+  integrity sha512-/qKPUQlaW1OyR51WeCPBvRnAlnZFUJkCSG5HzGnuIqhgyJtF+T94lFnn33eiazjRm2LAHVy2guNnaq48X9SJuw==
+
 bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
   version "4.11.8"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
@@ -1068,22 +1078,23 @@ bundle-loader@~0.5.0:
   dependencies:
     loader-utils "^1.1.0"
 
-cacache@^10.0.4:
-  version "10.0.4"
-  resolved "https://registry.yarnpkg.com/cacache/-/cacache-10.0.4.tgz#6452367999eff9d4188aefd9a14e9d7c6a263460"
-  integrity sha512-Dph0MzuH+rTQzGPNT9fAnrPmMmjKfST6trxJeK7NQuHRaVw24VzPRWTmg9MpcwOVQZO0E1FBICUlFeNaKPIfHA==
+cacache@^11.0.2:
+  version "11.3.1"
+  resolved "https://registry.yarnpkg.com/cacache/-/cacache-11.3.1.tgz#d09d25f6c4aca7a6d305d141ae332613aa1d515f"
+  integrity sha512-2PEw4cRRDu+iQvBTTuttQifacYjLPhET+SYO/gEFMy8uhi+jlJREDAjSF5FWSdV/Aw5h18caHA7vMTw2c+wDzA==
   dependencies:
     bluebird "^3.5.1"
     chownr "^1.0.1"
+    figgy-pudding "^3.1.0"
     glob "^7.1.2"
     graceful-fs "^4.1.11"
-    lru-cache "^4.1.1"
-    mississippi "^2.0.0"
+    lru-cache "^4.1.3"
+    mississippi "^3.0.0"
     mkdirp "^0.5.1"
     move-concurrently "^1.0.1"
     promise-inflight "^1.0.1"
     rimraf "^2.6.2"
-    ssri "^5.2.4"
+    ssri "^6.0.0"
     unique-filename "^1.1.0"
     y18n "^4.0.0"
 
@@ -1494,10 +1505,10 @@ commander@^2.14.1, commander@^2.9.0, commander@^2.x:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.15.1.tgz#df46e867d0fc2aec66a34662b406a9ccafff5b0f"
   integrity sha512-VlfT9F3V0v+jr4yxPc5gg9s62/fIVWsd2Bk2iD435um1NlGMYdVCq+MjcXnhYq2icNOizHr1kK+5TI6H0Hy0ag==
 
-commander@~2.13.0:
-  version "2.13.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.13.0.tgz#6964bca67685df7c1f1430c584f07d7597885b9c"
-  integrity sha512-MVuS359B+YzaWqjCL/c+22gfryv+mCBPHAv3zyVI2GN8EY6IRP8VwtasXn8jyyhvvq84R4ImN1OKRtcbIasjYA==
+commander@~2.17.1:
+  version "2.17.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
+  integrity sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==
 
 commander@~2.6.0:
   version "2.6.0"
@@ -2107,9 +2118,9 @@ domexception@^1.0.0:
     webidl-conversions "^4.0.2"
 
 duplexify@^3.4.2, duplexify@^3.6.0:
-  version "3.6.0"
-  resolved "https://registry.yarnpkg.com/duplexify/-/duplexify-3.6.0.tgz#592903f5d80b38d037220541264d69a198fb3410"
-  integrity sha512-fO3Di4tBKJpYTFHAxTU00BcfWMY9w24r/x21a6rZRbsD/ToUgGxsMbiGRmB7uVAXeGKXD9MwiLZa5E97EVgIRQ==
+  version "3.6.1"
+  resolved "https://registry.yarnpkg.com/duplexify/-/duplexify-3.6.1.tgz#b1a7a29c4abfd639585efaecce80d666b1e34125"
+  integrity sha512-vM58DwdnKmty+FSPzT14K9JXb90H+j5emaR4KYbr2KTIz00WHGbWOe5ghQTx233ZCLZtrGDALzKwcjEtSt35mA==
   dependencies:
     end-of-stream "^1.0.0"
     inherits "^2.0.1"
@@ -2727,6 +2738,11 @@ fbjs@^0.8.16, fbjs@^0.8.9:
     setimmediate "^1.0.5"
     ua-parser-js "^0.7.9"
 
+figgy-pudding@^3.1.0, figgy-pudding@^3.5.1:
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/figgy-pudding/-/figgy-pudding-3.5.1.tgz#862470112901c727a0e495a80744bd5baa1d6790"
+  integrity sha512-vNKxJHTEKNThjfrdJwHc7brvM6eVevuO5nTj6ez8ZQ1qbXTvGthucRF7S4vf2cr71QVnT70V34v0S1DyQsti0w==
+
 figures@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/figures/-/figures-1.7.0.tgz#cbe1e3affcf1cd44b80cadfed28dc793a9701d2e"
@@ -2802,14 +2818,14 @@ finalhandler@0.4.1:
     on-finished "~2.3.0"
     unpipe "~1.0.0"
 
-find-cache-dir@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-1.0.0.tgz#9288e3e9e3cc3748717d39eade17cf71fc30ee6f"
-  integrity sha1-kojj6ePMN0hxfTnq3hfPcfww7m8=
+find-cache-dir@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-2.0.0.tgz#4c1faed59f45184530fb9d7fa123a4d04a98472d"
+  integrity sha512-LDUY6V1Xs5eFskUVYtIwatojt6+9xC9Chnlk/jYOOvn3FAFfSaWddxahDGyNHh0b2dMXa6YW2m0tk8TdVaXHlA==
   dependencies:
     commondir "^1.0.1"
     make-dir "^1.0.0"
-    pkg-dir "^2.0.0"
+    pkg-dir "^3.0.0"
 
 find-parent-dir@^0.3.0:
   version "0.3.0"
@@ -5000,7 +5016,7 @@ loose-envify@^1.1.0, loose-envify@^1.3.1:
   dependencies:
     js-tokens "^3.0.0"
 
-lru-cache@^4.0.1, lru-cache@^4.1.1:
+lru-cache@^4.0.1, lru-cache@^4.1.3:
   version "4.1.3"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.3.tgz#a1175cf3496dfc8436c156c334b4955992bce69c"
   integrity sha512-fFEhvcgzuIoJVUF8fYr5KR0YqxD238zgObTps31YdADwPPAp82a4M8TrckkWyx7ekNlf9aBcVn81cFwwXngrJA==
@@ -5280,10 +5296,10 @@ minizlib@^1.1.0:
   dependencies:
     minipass "^2.2.1"
 
-mississippi@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/mississippi/-/mississippi-2.0.0.tgz#3442a508fafc28500486feea99409676e4ee5a6f"
-  integrity sha512-zHo8v+otD1J10j/tC+VNoGK9keCuByhKovAvdn74dmxJl9+mWHnx6EMsDN4lgRoMI/eYo2nchAxniIbUPb5onw==
+mississippi@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/mississippi/-/mississippi-3.0.0.tgz#ea0a3291f97e0b5e8776b363d5f0a12d94c67022"
+  integrity sha512-x471SsVjUtBRtcvd4BzKE9kFC+/2TeWgKCgw0bZcw1b9l2X3QX5vCWgF+KaZaYm87Ss//rHnWryupDrgLvmSkA==
   dependencies:
     concat-stream "^1.5.0"
     duplexify "^3.4.2"
@@ -5291,7 +5307,7 @@ mississippi@^2.0.0:
     flush-write-stream "^1.0.0"
     from2 "^2.1.0"
     parallel-transform "^1.1.0"
-    pump "^2.0.1"
+    pump "^3.0.0"
     pumpify "^1.3.3"
     stream-each "^1.1.0"
     through2 "^2.0.0"
@@ -5807,7 +5823,6 @@ p-try@^1.0.0:
 p-try@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.0.0.tgz#85080bb87c64688fa47996fe8f7dfbe8211760b1"
-  integrity sha512-hMp0onDKIajHfIkdRk3P4CdCmErkYAxxDtP3Wx/4nZ3aGlau2VKh3mZpcuFkH27WQkL/3WBCPOktzA9ZOAnMQQ==
 
 pako@~1.0.5:
   version "1.0.6"
@@ -5973,13 +5988,6 @@ pinkie@^2.0.0:
   resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
   integrity sha1-clVrgM+g1IqXToDnckjoDtT3+HA=
 
-pkg-dir@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-2.0.0.tgz#f6d5d1109e19d63edf428e0bd57e12777615334b"
-  integrity sha1-9tXREJ4Z1j7fQo4L1X4Sd3YVM0s=
-  dependencies:
-    find-up "^2.1.0"
-
 pkg-dir@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-3.0.0.tgz#2749020f239ed990881b1f71210d51eb6523bea3"
@@ -6560,7 +6568,7 @@ pug@^2.0.3:
     pug-runtime "^2.0.4"
     pug-strip-comments "^1.0.3"
 
-pump@^2.0.0, pump@^2.0.1:
+pump@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/pump/-/pump-2.0.1.tgz#12399add6e4cf7526d973cbc8b5ce2e2908b3909"
   integrity sha512-ruPMNRkN3MHP1cWJc9OWr+T/xDP0jhXYCLfJcBuX54hhfIBnaQmAUMfDcG4DM5UMWByBbJY69QSphm3jtDKIkA==
@@ -6571,7 +6579,6 @@ pump@^2.0.0, pump@^2.0.1:
 pump@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/pump/-/pump-3.0.0.tgz#b4a2116815bde2f4e1ea602354e8c75565107a64"
-  integrity sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==
   dependencies:
     end-of-stream "^1.1.0"
     once "^1.3.1"
@@ -6739,7 +6746,7 @@ read-pkg@^4.0.1:
     parse-json "^4.0.0"
     pify "^3.0.0"
 
-"readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.3, readable-stream@^2.3.6:
+"readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.3, readable-stream@^2.3.6, readable-stream@~2.3.6:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   integrity sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==
@@ -7156,6 +7163,15 @@ schema-utils@^0.4.0, schema-utils@^0.4.4, schema-utils@^0.4.5:
     ajv "^6.1.0"
     ajv-keywords "^3.1.0"
 
+schema-utils@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-1.0.0.tgz#0b79a93204d7b600d4b2850d1f66c2a34951c770"
+  integrity sha512-i27Mic4KovM/lnGsy8whRCHhc7VicJajAjTrYg11K9zfZXnYIt4k5F+kZkwjnrhKzLic/HLU4j11mjsz2G/75g==
+  dependencies:
+    ajv "^6.1.0"
+    ajv-errors "^1.0.0"
+    ajv-keywords "^3.1.0"
+
 script-loader@~0.7.0:
   version "0.7.2"
   resolved "https://registry.yarnpkg.com/script-loader/-/script-loader-0.7.2.tgz#2016db6f86f25f5cf56da38915d83378bb166ba7"
@@ -7414,6 +7430,14 @@ source-map-support@^0.5.6:
     buffer-from "^1.0.0"
     source-map "^0.6.0"
 
+source-map-support@~0.5.6:
+  version "0.5.9"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.9.tgz#41bc953b2534267ea2d605bccfa7bfa3111ced5f"
+  integrity sha512-gR6Rw4MvUlYy83vP0vxoVNzM6t8MUXqNuRsuBmBHQDu1Fh6X015FrLdgoDKcNdkwGubozq0P4N0Q37UyFVr1EA==
+  dependencies:
+    buffer-from "^1.0.0"
+    source-map "^0.6.0"
+
 source-map-url@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
@@ -7504,12 +7528,12 @@ sshpk@^1.7.0:
     jsbn "~0.1.0"
     tweetnacl "~0.14.0"
 
-ssri@^5.2.4:
-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/ssri/-/ssri-5.3.0.tgz#ba3872c9c6d33a0704a7d71ff045e5ec48999d06"
-  integrity sha512-XRSIPqLij52MtgoQavH/x/dU1qVKtWUAAZeOHsR9c2Ddi4XerFy3mc1alf+dLJKl9EUIm/Ht+EowFkTUOA6GAQ==
+ssri@^6.0.0:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/ssri/-/ssri-6.0.1.tgz#2a3c41b28dd45b62b63676ecb74001265ae9edd8"
+  integrity sha512-3Wge10hNcT1Kur4PDFwEieXSCMCJs/7WvSACcrMYrNp+b8kDL1/0wJch5Ni2WrtwEa2IO8OsVfeKIciKCDx/QA==
   dependencies:
-    safe-buffer "^5.1.1"
+    figgy-pudding "^3.5.1"
 
 stack-utils@^1.0.1:
   version "1.0.1"
@@ -7558,9 +7582,9 @@ stream-browserify@^2.0.1:
     readable-stream "^2.0.2"
 
 stream-each@^1.1.0:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/stream-each/-/stream-each-1.2.2.tgz#8e8c463f91da8991778765873fe4d960d8f616bd"
-  integrity sha512-mc1dbFhGBxvTM3bIWmAAINbqiuAk9TATcfIQC8P+/+HJefgaiTlMn2dHvkX8qlI12KeYKSQ1Ua9RrIqrn1VPoA==
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/stream-each/-/stream-each-1.2.3.tgz#ebe27a0c389b04fbcc233642952e10731afa9bae"
+  integrity sha512-vlMC2f8I2u/bZGqkdfLQW/13Zihpej/7PmSiMQsbYddxuTsJp8vRe2x2FvVExZg7FaOds43ROAuFJwPR4MTZLw==
   dependencies:
     end-of-stream "^1.1.0"
     stream-shift "^1.0.0"
@@ -7765,6 +7789,29 @@ tar@^4:
     safe-buffer "^5.1.2"
     yallist "^3.0.2"
 
+terser-webpack-plugin@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/terser-webpack-plugin/-/terser-webpack-plugin-1.1.0.tgz#cf7c25a1eee25bf121f4a587bb9e004e3f80e528"
+  integrity sha512-61lV0DSxMAZ8AyZG7/A4a3UPlrbOBo8NIQ4tJzLPAdGOQ+yoNC7l5ijEow27lBAL2humer01KLS6bGIMYQxKoA==
+  dependencies:
+    cacache "^11.0.2"
+    find-cache-dir "^2.0.0"
+    schema-utils "^1.0.0"
+    serialize-javascript "^1.4.0"
+    source-map "^0.6.1"
+    terser "^3.8.1"
+    webpack-sources "^1.1.0"
+    worker-farm "^1.5.2"
+
+terser@^3.8.1:
+  version "3.10.11"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-3.10.11.tgz#e063da74b194dde9faf0a561f3a438c549d2da3f"
+  integrity sha512-iruZ7j14oBbRYJC5cP0/vTU7YOWjN+J1ZskEGoF78tFzXdkK2hbCL/3TRZN8XB+MuvFhvOHMp7WkOCBO4VEL5g==
+  dependencies:
+    commander "~2.17.1"
+    source-map "~0.6.1"
+    source-map-support "~0.5.6"
+
 test-exclude@^4.2.1:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-4.2.1.tgz#dfa222f03480bca69207ca728b37d74b45f724fa"
@@ -7801,11 +7848,11 @@ throat@^4.0.0:
   integrity sha1-iQN8vJLFarGJJua6TLsgDhVnKmo=
 
 through2@^2.0.0:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
-  integrity sha1-AARWmzfHx0ujnEPzzteNGtlBQL4=
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.5.tgz#01c1e39eb31d07cb7d03a96a70823260b23132cd"
+  integrity sha512-/mrRod8xqpA+IHSLyGCQ2s8SPHiCDEeQJSep1jqLYeEUClOFG2Qsh+4FU6G9VeqpZnGW/Su8LQGc4YKni5rYSQ==
   dependencies:
-    readable-stream "^2.1.5"
+    readable-stream "~2.3.6"
     xtend "~4.0.1"
 
 through@^2.3.6:
@@ -7980,14 +8027,6 @@ ua-parser-js@^0.7.9:
   resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.18.tgz#a7bfd92f56edfb117083b69e31d2aa8882d4b1ed"
   integrity sha512-LtzwHlVHwFGTptfNSgezHp7WUlwiqb0gA9AALRbKaERfxwJoiX0A73QbTToxteIAuIaFshhgIZfqK8s7clqgnA==
 
-uglify-es@^3.3.4:
-  version "3.3.9"
-  resolved "https://registry.yarnpkg.com/uglify-es/-/uglify-es-3.3.9.tgz#0c1c4f0700bed8dbc124cdb304d2592ca203e677"
-  integrity sha512-r+MU0rfv4L/0eeW3xZrd16t4NZfK8Ld4SWVglYBb7ez5uXFWHuVRs6xCTrf1yirs9a4j4Y27nn7SRfO6v67XsQ==
-  dependencies:
-    commander "~2.13.0"
-    source-map "~0.6.1"
-
 uglify-js@^2.4.19, uglify-js@^2.6, uglify-js@^2.6.1:
   version "2.8.29"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.29.tgz#29c5733148057bb4e1f75df35b7a9cb72e6a59dd"
@@ -8011,20 +8050,6 @@ uglify-to-browserify@~1.0.0:
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
   integrity sha1-bgkk1r2mta/jSeOabWMoUKD4grc=
 
-uglifyjs-webpack-plugin@^1.2.4:
-  version "1.2.7"
-  resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.2.7.tgz#57638dd99c853a1ebfe9d97b42160a8a507f9d00"
-  integrity sha512-1VicfKhCYHLS8m1DCApqBhoulnASsEoJ/BvpUpP4zoNAPpKzdH+ghk0olGJMmwX2/jprK2j3hAHdUbczBSy2FA==
-  dependencies:
-    cacache "^10.0.4"
-    find-cache-dir "^1.0.0"
-    schema-utils "^0.4.5"
-    serialize-javascript "^1.4.0"
-    source-map "^0.6.1"
-    uglify-es "^3.3.4"
-    webpack-sources "^1.1.0"
-    worker-farm "^1.5.2"
-
 union-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/union-value/-/union-value-1.0.0.tgz#5c71c34cb5bad5dcebe3ea0cd08207ba5aa1aea4"
@@ -8053,16 +8078,16 @@ uniqs@^2.0.0:
   integrity sha1-/+3ks2slKQaW5uFl1KWe25mOawI=
 
 unique-filename@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/unique-filename/-/unique-filename-1.1.0.tgz#d05f2fe4032560871f30e93cbe735eea201514f3"
-  integrity sha1-0F8v5AMlYIcfMOk8vnNe6iAVFPM=
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/unique-filename/-/unique-filename-1.1.1.tgz#1d69769369ada0583103a1e6ae87681b56573230"
+  integrity sha512-Vmp0jIp2ln35UTXuryvjzkjGdRyf9b2lTXuSYUiPmzRcl3FDtYqAwOnTJkAngD9SWhnoJzDbTKwaOrZ+STtxNQ==
   dependencies:
     unique-slug "^2.0.0"
 
 unique-slug@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/unique-slug/-/unique-slug-2.0.0.tgz#db6676e7c7cc0629878ff196097c78855ae9f4ab"
-  integrity sha1-22Z258fMBimHj/GWCXx4hVrp9Ks=
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/unique-slug/-/unique-slug-2.0.1.tgz#5e9edc6d1ce8fb264db18a507ef9bd8544451ca6"
+  integrity sha512-n9cU6+gITaVu7VGj1Z8feKMmfAjEAQGhwD9fE3zvpRRa0wEIx8ODYkVGfSc94M2OX00tUFV8wH3zYbm1I8mxFg==
   dependencies:
     imurmurhash "^0.1.4"