diff --git a/package.json b/package.json
index d73a798..32513c5 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "koa-json": "^2.0.2",
     "koa-router": "^7.4.0",
     "koa-static": "^4.0.3",
-    "lodash": "^3.10.1",
+    "lodash": "^4.17.15",
     "sdchain-api-core": "0.0.1",
     "validator": "^10.9.0",
     "winston": "^2.3.1"