diff --git a/requirements-dev.txt b/requirements-dev.txt
index b1f79d9..761c1ed 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -3,7 +3,7 @@ apiclient==1.0.3
 appdirs==1.4.3
 argh==0.26.2
 asn1crypto==0.22.0
-Babel==2.4.0
+Babel==2.9.1
 backports-abc==0.5
 beautifulsoup4==4.5.3
 bs4==0.0.1