diff --git a/requirements.txt b/requirements.txt
index f43ce11..4a80543 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ docutils==0.20.1
 Flask-Mail==0.9.1
 Flask-MySQL==1.5.2
 Flask-SQLAlchemy==3.0.3
-idna==3.4
+idna==3.17
 itsdangerous==2.1.2
 Jinja2==3.1.2
 lamson==1.3.4