diff --git a/package.json b/package.json
index 22d3eae..ec5df9b 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   },
   "homepage": "https://github.com/npm/npmo-auth-sso#readme",
   "dependencies": {
-    "lodash": "^3.10.1",
+    "lodash": "^4.17.20",
     "redis": "^2.1.0",
     "saml2-js": "^1.2.0",
     "uuid": "^2.0.1"