diff --git a/pyproject.toml b/pyproject.toml
index 1465c641..3642f1eb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,6 +46,7 @@ dependencies = [
 pytest = [
     "pytest>=8.4.2",
     "pytest-asyncio>=1.2.0",
+    "pre-commit",
 ]
 
 api = [
diff --git a/tests/test_workspace_isolation.py b/tests/test_workspace_isolation.py
index 4a6f284b..f962a300 100644
--- a/tests/test_workspace_isolation.py
+++ b/tests/test_workspace_isolation.py
@@ -824,6 +824,7 @@ async def test_lightrag_end_to_end_workspace_isolation():
         # Factory function to create different mock LLM functions for each workspace
         def create_mock_llm_func(workspace_name):
             """Create a mock LLM function that returns different content based on workspace"""
+
             async def mock_llm_func(
                 prompt, system_prompt=None, history_messages=[], **kwargs
             ) -> str:
@@ -840,6 +841,7 @@ relation<|#|>Machine Learning<|#|>Artificial Intelligence<|#|>subset, related fi
 entity<|#|>Neural Networks<|#|>concept<|#|>Neural Networks are computing systems inspired by biological neural networks.
 relation<|#|>Deep Learning<|#|>Neural Networks<|#|>uses, composed of<|#|>Deep Learning uses multiple layers of Neural Networks to learn representations.
 <|COMPLETE|>"""
+
             return mock_llm_func
 
         # Mock embedding function
diff --git a/uv.lock b/uv.lock
index 5b86567e..97703af0 100644
--- a/uv.lock
+++ b/uv.lock
@@ -2611,6 +2611,7 @@ docling = [
 evaluation = [
     { name = "datasets" },
     { name = "httpx" },
+    { name = "pre-commit" },
     { name = "pytest" },
     { name = "pytest-asyncio" },
     { name = "ragas" },
@@ -2696,6 +2697,7 @@ offline-storage = [
     { name = "redis" },
 ]
 pytest = [
+    { name = "pre-commit" },
     { name = "pytest" },
     { name = "pytest-asyncio" },
 ]
@@ -2751,6 +2753,7 @@ requires-dist = [
     { name = "passlib", extras = ["bcrypt"], marker = "extra == 'api'" },
     { name = "pipmaster" },
     { name = "pipmaster", marker = "extra == 'api'" },
+    { name = "pre-commit", marker = "extra == 'pytest'" },
     { name = "psutil", marker = "extra == 'api'" },
     { name = "pycryptodome", marker = "extra == 'api'", specifier = ">=3.0.0,<4.0.0" },
     { name = "pydantic" },