diff --git a/package-lock.json b/package-lock.json
index 9b81a51..b37ea4d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15737,9 +15737,9 @@
       "dev": true
     },
     "uglify-js": {
-      "version": "3.6.9",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.6.9.tgz",
-      "integrity": "sha512-pcnnhaoG6RtrvHJ1dFncAe8Od6Nuy30oaJ82ts6//sGSXOP5UjBMEthiProjXmMNHOfd93sqlkztifFMcb+4yw==",
+      "version": "3.8.0",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.8.0.tgz",
+      "integrity": "sha512-ugNSTT8ierCsDHso2jkBHXYrU8Y5/fY2ZUprfrJUiD7YpuFvV4jODLFmb3h4btQjqr5Nh4TX4XtgDfCU1WdioQ==",
       "dev": true,
       "requires": {
         "commander": "~2.20.3",
diff --git a/package.json b/package.json
index b8ec11c..81878b5 100644
--- a/package.json
+++ b/package.json
@@ -84,7 +84,7 @@
     "rollup-plugin-babel": "4.4.0",
     "rollup-plugin-commonjs": "9.3.4",
     "rollup-plugin-node-resolve": "4.2.4",
-    "uglify-js": "3.6.9",
+    "uglify-js": "3.8.0",
     "zlib": "1.0.5"
   }
 }