diff --git a/requirements.txt b/requirements.txt
index d1df586..35db4ea 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ altair==4.1.0
 appnope==0.1.0
 astor==0.8.1
 attrs==19.3.0
-Babel==2.8.0
+Babel==2.9.1
 backcall==0.1.0
 base58==2.0.0
 bleach==3.1.5