diff --git a/pyproject.toml b/pyproject.toml
index 64e97f97..bc8b8117 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,7 @@ test = [
     "isort==7.0.0",
     "mypy==1.19.1",
     "pytest-asyncio==0.26.0",
-    "pytest==8.4.2",
+    "pytest==9.0.2",
     "pytest-cov==7.0.0",
     "langchain-tests==1.1.0",
     "langgraph==1.0.4"