diff --git a/requirements.txt b/requirements.txt
index f09e263..17f1587 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ appnope==0.1.0
 asn1crypto==0.22.0
 astroid==1.5.3
 autodoc==0.3
-Babel==2.5.0
+Babel==2.9.1
 backports-abc==0.5
 backports.functools-lru-cache==1.4
 backports.shutil-get-terminal-size==1.0.0