diff --git a/pyproject.toml b/pyproject.toml
index d0602c4..8c8ec43 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ tests = [
     "pandas-stubs~=2.0",
     "pytest~=8.0",
     "pytest-cov~=5.0",
-    "ruff~=0.3.0",
+    "ruff~=0.4.1",
 ]
 
 [project.urls]