diff --git a/colorapp/requirements.txt b/colorapp/requirements.txt
index 47f05a0..341816a 100644
--- a/colorapp/requirements.txt
+++ b/colorapp/requirements.txt
@@ -1,3 +1,3 @@
 flask
 aws-xray-sdk
-gunicorn==19.9.0
+gunicorn==22.0.0