diff --git a/requirements.txt b/requirements.txt
index 4792c28..ed9395a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ Flask-Migrate==2.5.3
 Flask-SQLAlchemy==2.4.4
 Flask-WTF==0.14.3
 gevent==20.9.0
-greenlet==0.4.17
+greenlet==1.1.1
 idna==2.10
 itsdangerous==1.1.0
 Jinja2==2.11.3