diff --git a/requirements.txt b/requirements.txt
index c2c6f9f..909e7dd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 alabaster==0.7.8
-Babel==2.3.4
+Babel==2.9.1
 backports-abc==0.4
 backports.shutil-get-terminal-size==1.0.0
 backports.ssl-match-hostname==3.5.0.1