diff --git a/package.json b/package.json
index 619cdfc..d4b5bd7 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "graphql": "14.0.2",
     "graphql-subscriptions": "1.0.0",
     "graphql-tag": "2.9.2",
-    "graphql-tools": "3.1.1",
+    "graphql-tools": "4.0.0",
     "sinon": "6.0.1"
   },
   "scripts": {