diff --git a/requirements/common.txt b/requirements/common.txt
index 15a85bb..8b2e780 100644
--- a/requirements/common.txt
+++ b/requirements/common.txt
@@ -8,6 +8,7 @@ markdown
 django-filter
 six
 webassets
+celery<4.0
 django-celery
 flower
 django-jsonify
diff --git a/t/common.txt b/t/common.txt
index 15a85bb..8b2e780 100644
--- a/t/common.txt
+++ b/t/common.txt
@@ -8,6 +8,7 @@ markdown
 django-filter
 six
 webassets
+celery<4.0
 django-celery
 flower
 django-jsonify