diff --git a/package.json b/package.json
index 6548d63..f67501b 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   "dependencies": {
     "express": "^4.10.6",
     "http-proxy": "^1.8.1",
-    "lodash": "^3.1.0"
+    "lodash": "^4.17.20"
   },
   "license": "MIT"
 }