diff --git a/requirements.txt b/requirements.txt
index 5c478665..6fe5638e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ cffi==1.13.1
 classtools==0.1
 Flask==1.1.1
 flask-mail==0.9.1
-flower==0.9.3
+flower==1.2.0
 gevent==1.4.0
 greenlet==0.4.15
 gunicorn==19.9.0