diff --git a/requirements.txt b/requirements.txt
index 21f33bd..ea3aa0b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ Flask-Mail==0.9.1
 Flask-RESTful==0.3.8
 Flask-SQLAlchemy==2.5.1
 Flask-Testing==0.8.1
-gunicorn==20.0.4
+gunicorn==21.2.0
 idna==2.10
 importlib-metadata==3.7.3
 isort==5.6.4