diff --git a/package.json b/package.json
index 4a19f3c39..8da307079 100644
--- a/package.json
+++ b/package.json
@@ -341,7 +341,7 @@
     "http-proxy": "^1.13.0",
     "isbinaryfile": "^3.0.0",
     "lodash": "^4.17.4",
-    "log4js": "^1.1.1",
+    "log4js": "^6.4.0",
     "mime": "^1.3.4",
     "minimatch": "^3.0.2",
     "optimist": "^0.6.1",