diff --git a/setup.cfg b/setup.cfg
index b73b010e36..66c0738d69 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -39,7 +39,7 @@ packages = find:
 include_package_data = true
 zip_safe = false
 install_requires =
-    asgiref >= 3.6.0
+    asgiref >= 3.6.0, < 4
     backports.zoneinfo; python_version<"3.9"
     sqlparse >= 0.3.1
     tzdata; sys_platform == 'win32'