diff --git a/py-build/requirements.txt b/py-build/requirements.txt
index 3ef867e66..e20fc4b55 100644
--- a/py-build/requirements.txt
+++ b/py-build/requirements.txt
@@ -3,7 +3,7 @@ certifi==2025.11.12
 docutils==0.22.3
 ecdsa==0.19.1
 future==1.0.0
-idna==3.11
+idna==3.15
 isort==7.0.0
 jmespath==0.10.0
 lazy-object-proxy==1.12.0