diff --git a/libs/openant-core/requirements.txt b/libs/openant-core/requirements.txt
index 966904a..43fba35 100644
--- a/libs/openant-core/requirements.txt
+++ b/libs/openant-core/requirements.txt
@@ -7,7 +7,7 @@ docstring_parser==0.17.0
 h11==0.16.0
 httpcore==1.0.9
 httpx==0.28.1
-idna==3.11
+idna==3.15
 jiter==0.12.0
 pydantic==2.12.5
 pydantic_core==2.41.5