diff --git a/pyproject.toml b/pyproject.toml
index 44f44e3..e48a737 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ dependencies = [
     'click >=8.1.0, <9.0',
     'fastapi >=0.120, <1.0',
     'httpx >=0.28.0, <1.0',
-    'gql[httpx] >=3.4.0, <4.0',
+    'gql[httpx] >=3.4.0, <5.0',
     'PyYAML >=6.0, <7.0',
     'uvicorn >=0.38.0, <1.0',
 ]