diff --git a/requirements/celery44.txt b/requirements/celery44.txt
index ec2e822..de7c2d6 100644
--- a/requirements/celery44.txt
+++ b/requirements/celery44.txt
@@ -1,5 +1,5 @@
 amqp==2.6.1
 billiard==3.6.4.0
-celery==4.4.7
+celery==5.2.2
 kombu==4.6.11
 vine==1.3.0
diff --git a/requirements/constraints.txt b/requirements/constraints.txt
index 1c335ad..510d94b 100644
--- a/requirements/constraints.txt
+++ b/requirements/constraints.txt
@@ -11,6 +11,6 @@
 # stay on LTS version
 django< 2.3
 
-celery<5.0     # we still want to support celery 4
+celery<6.0     # we still want to support celery 4
 pylint<2.8     # version 2.8 introduced breaking changes
                # that have not yet been resolved, can be removed when version 2.8.2 is released