diff --git a/requirements.txt b/requirements.txt
index 5184041..55a3313 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Babel==2.2.0
+Babel==2.9.1
 PyYAML==3.11
 Werkzeug==0.9.4
 argparse==1.4.0