diff --git a/requirements.txt b/requirements.txt
index 46404062..fc680589 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ hpack==4.0.0
 httptools==0.1.1
 Hypercorn==0.13.2
 hyperframe==6.0.1
-idna==2.10
+idna==3.4
 itsdangerous==2.0.0a1
 Jinja2==3.0.0a1
 MarkupSafe==2.0.0a1