diff --git a/requirements.txt b/requirements.txt
index 08e6d82..5a1a249 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@
 alabaster==0.7.12
 arrow==0.14.2
 attrs==19.1.0
-Babel==2.7.0
+Babel==2.9.1
 backcall==0.1.0
 binaryornot==0.4.4
 bleach==3.1.0