diff --git a/requirements.txt b/requirements.txt
index d6c4aa4e18..b68db4828a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ ephemeral-port-reserve==1.1.0
 future==0.16.0
 google-auth==1.2.0
 graphviz==0.8.2
-gunicorn==19.8.1
+gunicorn==22.0.0
 http-parser==0.9.0
 humanfriendly==4.18
 humanize==0.5.1