diff --git a/requirements.txt b/requirements.txt
index f44006e..8f2cba5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ requests==2.10.0
 munkres==1.0.7
 
 # For relative / natural datetimes
-babel==2.3.4
+babel==2.9.1
 
 # For PostgreSQL
 psycopg2==2.6.1