diff --git a/requirements.txt b/requirements.txt
index 577871f..c59a9bc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ cryptography==3.3.2
 Flask==1.1.1
 Flask-Bcrypt==0.7.1
 gunicorn==20.0.4
-idna==2.8
+idna==3.7
 isort==4.3.21
 itsdangerous==1.1.0
 Jinja2==2.11.3