diff --git a/requirements.txt b/requirements.txt
index 2193149..9c95708 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ django==3.2.25
 django-celery-beat==2.5.0
 django-celery-results==2.3.0
 pillow==8.3.2
-celery==4.4.7  # or keep celery 5.2.7 and upgrade flower
+celery<5.0
 flower>=1.0.0  # upgrade flower to resolve vine conflict
 stripe==2.61.0
 python-dotenv==0.19.0