diff --git a/requirements.txt b/requirements.txt
index 4792c28..9f58119 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ Flask-Login==0.5.0
 Flask-Migrate==2.5.3
 Flask-SQLAlchemy==2.4.4
 Flask-WTF==0.14.3
-gevent==20.9.0
+gevent==21.8.0
 greenlet==0.4.17
 idna==2.10
 itsdangerous==1.1.0