diff --git a/package-lock.json b/package-lock.json
index aaae7657..cc9ca230 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8819,9 +8819,9 @@
       "dev": true
     },
     "ts-loader": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/ts-loader/-/ts-loader-3.3.1.tgz",
-      "integrity": "sha512-JkXGN4of6vIpEjbZwKeW0DW47LDKptessD1e1+yEfBZE5xVgEAgeFXp3JqJhifD9b61BMm6mdfUyaC9gg2OIjQ==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/ts-loader/-/ts-loader-3.4.0.tgz",
+      "integrity": "sha512-p5vExXYOj/yUEuW45kG643ufi1ynFleeeXFX4dhhVHbBpnrLqTx3VK0ZIMPfwBONIslYD4o2hyWb7JIquoL8tg==",
       "dev": true,
       "requires": {
         "chalk": "2.3.0",
diff --git a/package.json b/package.json
index 8a79514f..44950bd7 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "rollup-plugin-babel": "^3.0.3",
     "sinon": "^4.2.2",
     "sinon-chai": "^2.14.0",
-    "ts-loader": "^3.3.1",
+    "ts-loader": "^3.4.0",
     "tsconfig-holy-grail": "^3.0.18",
     "tslint": "^5.9.1",
     "tslint-config-holy-grail": "^22.0.1",