diff --git a/pyproject.toml b/pyproject.toml
index e73f596..a3feed5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ optional-dependencies.dev = [
     "pytest==8.3.2",
     "pytest-cov==5.0.0",
     "pytest-regressions==2.5.0",
-    "ruff==0.5.5",
+    "ruff==0.5.6",
     "sphinx==7.4.7",
     "sphinx-click==6.0.0",
     "sphinx-copybutton==0.5.2",