diff --git a/requirements.txt b/requirements.txt
index 8691a62..e3a8080 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 alabaster==0.7.12
 argh==0.26.2
 astroid==2.2.5
-Babel==2.7.0
+Babel==2.9.1
 backports-abc==0.5
 breathe==4.13.0.post0
 certifi==2019.6.16