diff --git a/requirements.txt b/requirements.txt
index 50cf7f5..2c9dde6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ xylose==1.35.0
 requests==2.21.0
 Flask-DebugToolbar==0.10.1
 Flask-WTF==0.14.2
-gunicorn==19.8.1
+gunicorn==22.0.0
 gevent==1.3.7
 itsdangerous==1.1.0
 python-slugify==1.2.6