diff --git a/requirements.txt b/requirements.txt
index 0b5eaa7..7d2e167 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ argh==0.26.2
 astroid==1.6.1
 attrs==17.4.0
 autopep8==1.3.4
-Babel==2.5.3
+Babel==2.9.1
 certifi==2018.1.18
 chardet==3.0.4
 click==6.7