diff --git a/requirements/common.txt b/requirements/common.txt
index b897f49..06646b7 100644
--- a/requirements/common.txt
+++ b/requirements/common.txt
@@ -13,7 +13,7 @@ django-rest-swagger
 django-timezone-field>=3.1,<4.0  # last version supporting django 1.11
 djangorestframework>=3.6,<3.7
 drfapikey
-flower
+flower>=0.9.5
 markdown
 natsort
 python-debian