diff --git a/requirements.txt b/requirements.txt
index 8e31f9d..002dac9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 alabaster==0.7.12
-Babel==2.9.0
+Babel==2.9.1
 breathe==4.26.0
 imagesize==1.2.0
 Jinja2==2.11.3