diff --git a/requirements.txt b/requirements.txt
index 29897ef..fbbe809 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ gevent==20.5.0
 geventhttpclient-wheels==1.3.1.dev3
 greenlet==0.4.15
 gunicorn==20.0.4
-idna==2.9
+idna==3.7
 importlib-metadata==1.6.0
 itsdangerous==1.1.0
 Jinja2==2.11.3