diff --git a/requirements.frozen.txt b/requirements.frozen.txt
index fdf5163..abcba82 100644
--- a/requirements.frozen.txt
+++ b/requirements.frozen.txt
@@ -2,7 +2,7 @@ alabaster==0.7.12
 asn1crypto==0.24.0
 atomicwrites==1.3.0
 attrs==19.1.0
-Babel==2.7.0
+Babel==2.9.1
 bleach==3.1.2
 bson==0.5.8
 certifi==2019.6.16