diff --git a/pyproject.toml b/pyproject.toml
index c7d9a16..680bb06 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ dependencies = []
 dev = [
   "pytest>=8",
   "pytest-watch>=4",
-  "ruff>=0.6",
+  "ruff>=0.15.21",
 ]
 
 [project.urls]