diff --git a/docs/requirements.txt b/docs/requirements.txt
index 2819152fd..5b8ee6909 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,6 +1,6 @@
 alabaster==0.7.12
 attrs==19.3.0
-Babel==2.7.0
+Babel==2.9.1
 certifi==2019.11.28
 chardet==3.0.4
 commonmark==0.9.1