diff --git a/requirements.txt b/requirements.txt
index d213703..85cdb39 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ asn1crypto==0.24.0
 astor==0.7.1
 astroid==2.0.2
 attrs==18.1.0
-Babel==2.6.0
+Babel==2.9.1
 backcall==0.1.0
 basemap==1.1.0
 bleach==2.1.4