diff --git a/xtest/pyproject.toml b/xtest/pyproject.toml
index e413e7cc..eea6fe7a 100644
--- a/xtest/pyproject.toml
+++ b/xtest/pyproject.toml
@@ -24,7 +24,7 @@ dependencies = [
     "cryptography>=46.0.3",
     "gitdb>=4.0.12",
     "GitPython>=3.1.50",
-    "idna>=3.17",
+    "idna>=3.18",
     "iniconfig>=2.3.0",
     "Jinja2>=3.1.6",
     "jsonschema>=4.25.1",
diff --git a/xtest/uv.lock b/xtest/uv.lock
index 59a27d2c..0abc32bd 100644
--- a/xtest/uv.lock
+++ b/xtest/uv.lock
@@ -222,11 +222,11 @@ wheels = [
 
 [[package]]
 name = "idna"
-version = "3.17"
+version = "3.18"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/b9/28/99c51f664567218d824af024c0251650fb27e4ca066df188dab0769c5b91/idna-3.17.tar.gz", hash = "sha256:5eb0cb53bc467c12eadcf6de83163ad8527cec9416f44b9b61b19caedad2b87f", size = 196048, upload-time = "2026-05-28T14:32:38.55Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/cd/63/9496c57188a2ee585e0f1db071d75089a11e98aa86eb99d9d7618fc1edce/idna-3.18.tar.gz", hash = "sha256:ffb385a7e039654cef1ab9ef32c6fafe283c0c0467bba1d9029738ce4a14a848", size = 196711, upload-time = "2026-06-02T14:34:07.794Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/de/a7/f76514cc40ad6234098ecdebda08732d75964776c51a42845b7da10649e2/idna-3.17-py3-none-any.whl", hash = "sha256:466e48829084efe2548012b855df21540b96f2e20e51bd124c851536556a592c", size = 65316, upload-time = "2026-05-28T14:32:37.035Z" },
+    { url = "https://files.pythonhosted.org/packages/1e/5e/d4e9f1a599fb8e573b7b87160658329fbf28d19eac2718f51fc3def3aa5a/idna-3.18-py3-none-any.whl", hash = "sha256:7f952cbe720b688055e3f87de14f5c3e5fdaa8bc3928985c4077ca689de849a2", size = 65455, upload-time = "2026-06-02T14:34:06.319Z" },
 ]
 
 [[package]]
@@ -691,7 +691,7 @@ requires-dist = [
     { name = "cryptography", specifier = ">=46.0.3" },
     { name = "gitdb", specifier = ">=4.0.12" },
     { name = "gitpython", specifier = ">=3.1.50" },
-    { name = "idna", specifier = ">=3.17" },
+    { name = "idna", specifier = ">=3.18" },
     { name = "iniconfig", specifier = ">=2.3.0" },
     { name = "jinja2", specifier = ">=3.1.6" },
     { name = "jsonschema", specifier = ">=4.25.1" },