diff --git a/requirements.txt b/requirements.txt
index ef63792d..6ec38260 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ atomicwrites==1.2.1
 attrs==18.2.0
 autobahn==18.11.2
 Automat==0.7.0
-Babel==2.6.0
+Babel==2.9.1
 billiard==3.5.0.5
 bleach==3.0.2
 certifi==2018.11.29