diff --git a/requirements.txt b/requirements.txt
index a119be0c..5d10c02c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 alabaster==0.7.10
 astroid==1.5.3
 autopep8==1.3.3
-Babel==2.5.1
+Babel==2.9.1
 boto3==1.4.7
 botocore==1.7.47
 certifi==2017.7.27.1