diff --git a/requirements.txt b/requirements.txt
index 1a35dea..8bc51e9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ Flask-WTF==0.14.3
 guess-language-spirit==0.5.3
 gunicorn==20.0.4
 httpie==3.1.0
-idna==2.9
+idna==3.7
 isort==4.3.21
 itsdangerous==1.1.0
 Jinja2==3.1.3