diff --git a/requirements.txt b/requirements.txt
index 70e95fd6..a11a651c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 alabaster==0.7.12
 asn1crypto==0.24.0
 attrs==19.1.0
-Babel==2.7.0
+Babel==2.9.1
 certifi==2019.6.16
 cffi==1.12.3
 chardet==3.0.4