diff --git a/setup.py b/setup.py
index ddee041..166b31d 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@
 
 
 INSTALL_REQUIRES = [
-    'celery>=5.0,<5.3',
+    'celery>=5.0,<6',
     'mail-parser',
     'pytz',
 ]