diff --git a/requirements.txt b/requirements.txt
index b7fdc6d..e808db6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 absl-py==0.2.2
 alabaster==0.7.11
 astor==0.6.2
-Babel==2.6.0
+Babel==2.9.1
 backcall==0.1.0
 beautifulsoup4==4.4.1
 bleach==2.1.3