diff --git a/requirements.txt b/requirements.txt
index 9bd605c..9cb9727 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ enum-compat==0.0.2
 enum34==1.1.6
 environ==1.0
 eventlet==0.21.0
-flower==0.9.2
+flower==1.2.0
 futures==3.2.0
 gevent==1.3.6
 greenlet==0.4.14