diff --git a/pyproject.toml b/pyproject.toml
index c3b83bb..c42fef8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ dependencies = [
     "h11==0.16.0",
     "httpcore==1.0.9",
     "httpx==0.28.1",
-    "idna==3.15",
+    "idna==3.16",
     "pycparser==3.0",
     "typing_extensions==4.15.0",
 ]
diff --git a/requirements.txt b/requirements.txt
index d5cbcea..2e17834 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,6 @@ exceptiongroup==1.3.1
 h11==0.16.0
 httpcore==1.0.9
 httpx==0.28.1
-idna==3.15
+idna==3.16
 pycparser==3.0
 typing_extensions==4.15.0