diff --git a/package.json b/package.json
index 2e177901155..2cf27b786b9 100644
--- a/package.json
+++ b/package.json
@@ -103,7 +103,7 @@
     "shelljs": "0.7.8",
     "sinon": "4.1.2",
     "style-loader": "0.19.0",
-    "unminified-webpack-plugin": "1.4.1",
+    "unminified-webpack-plugin": "1.4.2",
     "watch": "1.0.2",
     "wdio-dot-reporter": "0.0.9",
     "wdio-mocha-framework": "0.5.11",
diff --git a/yarn.lock b/yarn.lock
index 5f874a65b64..40e63cdba5c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9548,9 +9548,9 @@ universalify@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.1.1.tgz#fa71badd4437af4c148841e3b3b165f9e9e590b7"
 
-unminified-webpack-plugin@1.4.1:
-  version "1.4.1"
-  resolved "https://registry.yarnpkg.com/unminified-webpack-plugin/-/unminified-webpack-plugin-1.4.1.tgz#4b3a2c2fca12d01314d558bdf99bdf8cebc44795"
+unminified-webpack-plugin@1.4.2:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/unminified-webpack-plugin/-/unminified-webpack-plugin-1.4.2.tgz#2cf5294abe7827bb874354e30ee3e0c5ae0e8743"
 
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"