diff --git a/requirements.txt b/requirements.txt
index a50cecd..b7ef65f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ argh==0.26.2
 astroid==1.6.5
 atomicwrites==1.1.5
 attrs==18.1.0
-Babel==2.6.0
+Babel==2.9.1
 certifi==2018.4.16
 chardet==3.0.4
 docutils==0.14