diff --git a/requirements/docs.txt b/requirements/docs.txt
index 7f4c8f6..ae82676 100644
--- a/requirements/docs.txt
+++ b/requirements/docs.txt
@@ -1,6 +1,6 @@
 -r dev.txt
 alabaster==0.7.9
-Babel==2.3.4
+Babel==2.9.1
 docutils==0.12
 funcparserlib==0.3.6
 imagesize==0.7.1