Update dependencies (#3133)

package.json

@@ -64,8 +64,8 @@
   "homepage": "https://github.com/rollup/rollup",
   "dependencies": {
     "@types/estree": "0.0.39",
-    "@types/node": "^12.7.5",
-    "acorn": "^7.0.0"
+    "@types/node": "^12.7.8",
+    "acorn": "^7.1.0"
   },
   "devDependencies": {
     "@types/chokidar": "^2.1.3",
@@ -76,7 +76,7 @@
     "acorn-walk": "^7.0.0",
     "buble": "^0.19.8",
     "chokidar": "^2.1.8",
-    "codecov": "^3.5.0",
+    "codecov": "^3.6.1",
     "console-group": "^0.3.3",
     "core-js": "^3.2.1",
     "cross-os": "^1.3.0",
@@ -90,8 +90,8 @@
     "hash.js": "^1.1.7",
     "husky": "^3.0.5",
     "immutable": "^4.0.0-rc.12",
-    "is-reference": "^1.1.3",
-    "lint-staged": "^9.2.5",
+    "is-reference": "^1.1.4",
+    "lint-staged": "^9.4.0",
     "locate-character": "^2.0.5",
     "magic-string": "^0.25.3",
     "markdownlint-cli": "^0.18.0",
@@ -104,7 +104,7 @@
     "pretty-ms": "^5.0.0",
     "require-relative": "^0.8.7",
     "requirejs": "^2.3.6",
-    "rollup": "^1.21.2",
+    "rollup": "^1.21.4",
     "rollup-plugin-alias": "^2.0.0",
     "rollup-plugin-buble": "^0.19.8",
     "rollup-plugin-commonjs": "^10.1.0",
@@ -122,8 +122,8 @@
     "source-map": "^0.6.1",
     "source-map-support": "^0.5.13",
     "sourcemap-codec": "^1.4.6",
-    "systemjs": "^6.1.1",
-    "terser": "^4.3.1",
+    "systemjs": "^6.1.2",
+    "terser": "^4.3.2",
     "tslib": "^1.10.0",
     "tslint": "^5.20.0",
     "turbocolor": "^2.6.1",