diff --git a/package.json b/package.json
index 60bc955..df8e9d4 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
         "estraverse": "~1.7.0",
         "escodegen": "~1.4.1",
         "mkdirp": "~0.5.0",
-        "uglify-js": "~2.4.12"
+        "uglify-js": "~3.10.1"
     },
     "bin": {
         "echarts-optimize": "./bin/echarts-optimize"