diff --git a/requirements.txt b/requirements.txt
index 1c2ad69..f6ccecd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 alabaster==0.7.10
 argh==0.26.2
 astroid==1.5.3
-Babel==2.5.1
+Babel==2.9.1
 certifi==2017.7.27.1
 chardet==3.0.4
 colorama==0.3.9