diff --git a/requirements.txt b/requirements.txt
index 9de0bac..836e2b0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ fastapi==0.65.2
 greenlet==1.1.0
 h11==0.12.0
 httptools==0.2.0
-idna<3,>=2.5
+idna>=2.5,<4
 iniconfig==1.1.1
 isort==5.8.0
 lazy-object-proxy==1.6.0