diff --git a/requirements.txt b/requirements.txt
index 5ad12d1..18e1d72 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ chardet==4.0.0
 click==7.1.2
 Flask==1.1.2
 gunicorn==20.0.4
-idna==2.10
+idna==3.7
 itsdangerous==1.1.0
 Jinja2==2.11.3
 MarkupSafe==1.1.1