diff --git a/pyproject.toml b/pyproject.toml
index f140ff47..9f618ef6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ readme = "README.md"
 requires-python = "~=3.13.2"
 
 dependencies = [
-    "Django~=5.2",
+    "Django>=5.2,<7.0",
     "celery[redis]~=5.4.0",
     "flower", # celery-dashboard
     "django-celery-beat",