diff --git a/requirements.txt b/requirements.txt
index 3216289..735da89 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ alabaster==0.7.12
 appnope==0.1.0
 astunparse==1.6.3
 attrs==19.3.0
-Babel==2.8.0
+Babel==2.9.1
 backcall==0.1.0
 bleach==3.3.0
 cachetools==4.1.0