diff --git a/package.json b/package.json
index dc003c9..0c4e7b4 100644
--- a/package.json
+++ b/package.json
@@ -35,8 +35,8 @@
   "dependencies": {
     "request-promise-core": "1.1.1",
     "bluebird": "^3.5.0",
-    "stealthy-require": "^1.1.0",
-    "tough-cookie": ">=2.3.3"
+    "stealthy-require": "^1.1.1",
+    "tough-cookie": "~2.3.3"
   },
   "peerDependencies": {
     "request": "^2.34"