diff --git a/requirements.txt b/requirements.txt
index 5ef446a..9e444a0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 appdirs==1.4.3
 asn1crypto==0.24.0
 asyncio==3.4.3
-Babel==2.5.3
+Babel==2.9.1
 Beaker==1.9.0
 bottle==0.12.13
 bottle-cork==0.12.0