diff --git a/requirements.txt b/requirements.txt
index b0195d9..8b01502 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ affinegap==1.11
 alabaster==0.7.12
 asyncio==3.4.3
 attrs==19.3.0
-Babel==2.8.0
+Babel==2.9.1
 base58==2.0.0
 bleach==3.3.0
 canonicaljson==1.1.4