diff --git a/setup.py b/setup.py
index aed15440..724da188 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 from setuptools import setup, find_packages
 
 install_requires = [
-    "graphql-core>=3.3.0a3,<3.4",
+    "graphql-core>=3.3.0a3,<3.7",
     "yarl>=1.6,<2.0",
     "backoff>=1.11.1,<3.0",
     "anyio>=3.0,<5",