diff --git a/package.json b/package.json
index 29a5ebaa..78eb4ab6 100644
--- a/package.json
+++ b/package.json
@@ -68,7 +68,7 @@
     "pretty-bytes-cli": "2.0.0",
     "semver": "5.7.0",
     "sinon": "7.3.1",
-    "uglify-js": "3.4.10",
+    "uglify-js": "3.5.2",
     "webpack": "3.12.0",
     "webpack-cli": "3.3.0"
   },
diff --git a/yarn.lock b/yarn.lock
index bb97a44a..db11a79e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8758,10 +8758,10 @@ type-detect@4.0.8:
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.8.tgz#7646fb5f18871cfbb7749e69bd39a6388eb7450c"
   integrity sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==
 
-uglify-js@3.4.10:
-  version "3.4.10"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.4.10.tgz#9ad9563d8eb3acdfb8d38597d2af1d815f6a755f"
-  integrity sha512-Y2VsbPVs0FIshJztycsO2SfPk7/KAF/T72qzv9u5EpQ4kB2hQoHlhNQTsNyy6ul7lQtqJN/AoWeS23OzEiEFxw==
+uglify-js@3.5.2:
+  version "3.5.2"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.5.2.tgz#dc0c7ac2da0a4b7d15e84266818ff30e82529474"
+  integrity sha512-imog1WIsi9Yb56yRt5TfYVxGmnWs3WSGU73ieSOlMVFwhJCA9W8fqFFMMj4kgDqiS/80LGdsYnWL7O9UcjEBlg==
   dependencies:
     commander "~2.19.0"
     source-map "~0.6.1"