diff --git a/requirements.txt b/requirements.txt
index ff853532..7f323e10 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -54,4 +54,4 @@ webservices==0.7
 wrapt==1.16.0rc1
 xmltodict==0.13.0
 zipp==3.17.0
-gunicorn==20.1.0
+gunicorn==21.2.0