diff --git a/requirements.txt b/requirements.txt
index e4b14b8..c6c9175 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 alabaster==0.7.10
 astroid==1.5.3
 autopep8==1.3.2
-Babel==2.4.0
+Babel==2.9.1
 backports-abc==0.5
 backports.functools-lru-cache==1.4
 backports.shutil-get-terminal-size==1.0.0