diff --git a/package.json b/package.json
index 05e32b4..b98cdff 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "googlediff": "~0.1.0",
     "json-gate": "~0.8.21",
     "jsonwebtoken": "^3.2.2",
-    "lodash": "~2.4.1",
+    "lodash": "~4.17.15",
     "lru-cache": "~2.5.0",
     "memoize": "~0.1.1",
     "mime": "~1.2.9",