diff --git a/package.json b/package.json
index 38ecc920c9..5d658617dd 100644
--- a/package.json
+++ b/package.json
@@ -119,7 +119,7 @@
     "stat-mode": "0.2.2",
     "string": "3.3.3",
     "style-loader": "0.18.2",
-    "uglify-js": "3.1.1",
+    "uglify-js": "3.1.2",
     "webpack": "3.6.0",
     "webpack-bundle-analyzer": "2.9.0",
     "webpack-dev-middleware": "1.12.0",
diff --git a/yarn.lock b/yarn.lock
index 493c4af180..c314bad0f4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10506,9 +10506,9 @@ uc.micro@^1.0.1, uc.micro@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/uc.micro/-/uc.micro-1.0.3.tgz#7ed50d5e0f9a9fb0a573379259f2a77458d50192"
 
-uglify-js@3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.1.1.tgz#e7144307281a1bc38a9a20715090b546c9f44791"
+uglify-js@3.1.2:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.1.2.tgz#b50bcf15a5fd9e9ed40afbcdef3b59d6891b291f"
   dependencies:
     commander "~2.11.0"
     source-map "~0.5.1"