diff --git a/tests/contracts/python/pyproject.toml b/tests/contracts/python/pyproject.toml
index a8dfe4b..2d692f7 100644
--- a/tests/contracts/python/pyproject.toml
+++ b/tests/contracts/python/pyproject.toml
@@ -3,7 +3,7 @@ name = "n2api-openai-python-contracts"
 version = "0.0.0"
 requires-python = "==3.12.*"
 dependencies = [
-  "openai==3.13.0",
+  "openai==3.15.0",
 ]
 
 [tool.uv]
diff --git a/tests/contracts/python/uv.lock b/tests/contracts/python/uv.lock
index f8f7d3e..c6cae2a 100644
--- a/tests/contracts/python/uv.lock
+++ b/tests/contracts/python/uv.lock
@@ -116,11 +116,11 @@ dependencies = [
 ]
 
 [package.metadata]
-requires-dist = [{ name = "openai", specifier = "==3.13.0" }]
+requires-dist = [{ name = "openai", specifier = "==3.15.0" }]
 
 [[package]]
 name = "openai"
-version = "3.13.0"
+version = "3.15.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio" },
@@ -130,9 +130,9 @@ dependencies = [
     { name = "sniffio" },
     { name = "typing-extensions" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/40/f1/4874c4f7db30121885e6a763e2670b2fe1d76c79ed4732f8acbb51c8d96e/openai-3.13.0.tar.gz", hash = "sha256:a8f87a9b3b9c08eb446d68bd0a80e8ec907c4c35fdea63f4265c7b34b2de3a60", size = 1624217, upload-time = "2026-09-10T19:38:27.597Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/82/6b/f086332d9fdefcc3853f2457209fcf221985d01d32b5021ab8096be7d506/openai-3.15.0.tar.gz", hash = "sha256:47bc15f8b9db62ba9ff7fa32164c72f4fd6333b22d890251292aac1c6bfe998f", size = 1664554, upload-time = "2026-09-18T00:53:05.192Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/63/7f/ee9ebb7c5ab7abf016969faec7c748a91c1fd893078bfe1e5ba5d82e96c2/openai-3.13.0-py3-none-any.whl", hash = "sha256:e35b1f6fe99245e86e37504d9fad1ad2a363807307c424232c1d849bd0666c8e", size = 2009683, upload-time = "2026-09-10T19:38:25.855Z" },
+    { url = "https://files.pythonhosted.org/packages/fb/92/fc65194e6e92cf0202a2e5fff75e2fef62e7dbb7a6cf2b48c1239dfedb50/openai-3.15.0-py3-none-any.whl", hash = "sha256:95d6b2caf3823c7e0fc08911317b7f31b9f9ccf93b414e7a5c8d5b226af115f6", size = 2018693, upload-time = "2026-09-18T00:53:02.507Z" },
 ]
 
 [[package]]