diff --git a/pyproject.toml b/pyproject.toml
index d93dde37b..13e5d3ea7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,7 +17,7 @@ version = "5.0.0"
 dependencies = [
   "bleach",
   "celery>=5.2.2",
-  "channels",
+  "channels<4",
   "coreapi",
   "dj-database-url",
   "django-celery-beat>=2.5.0",