diff --git a/docs/requirements.txt b/docs/requirements.txt
index 86f4dc7e..e03ef168 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -3,7 +3,7 @@
 python-markdown-math==0.8
 
 alabaster==0.7.16
-Babel==2.16.0
+Babel==2.17.0
 docutils==0.21.2
 imagesize==0.7.1
 Jinja2==2.11.3