diff --git a/package.json b/package.json
index 69341d3..2fb666d 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
   },
   "homepage": "https://github.com/tiant167/etcd2json",
   "dependencies": {
-    "lodash": "^3.10.1"
+    "lodash": "^4.17.19"
   },
   "devDependencies": {
     "mocha": "^2.2.5",