diff --git a/docker-images/requirements.txt b/docker-images/requirements.txt
index 01d09a7d..07578d7e 100644
--- a/docker-images/requirements.txt
+++ b/docker-images/requirements.txt
@@ -1,2 +1,2 @@
 uvicorn[standard]==0.21.0
-gunicorn==20.1.0
+gunicorn==21.1.0