diff --git a/requirements.txt b/requirements.txt
index c4fc311..bdb158b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 alabaster==0.7.12
 attrs==19.3.0
 autopep8==1.4.4
-Babel==2.8.0
+Babel==2.9.1
 backcall==0.1.0
 bleach==3.1.4
 certifi==2019.11.28