diff --git a/pyproject.toml b/pyproject.toml
index 93d435e..55f0fc6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,6 +21,7 @@ source = "vcs"
 
 [tool.ruff]
 fix = true
+extend-exclude = ["tests"]
 
 [tool.ruff.format]
 docstring-code-format = true