diff --git a/pyproject.toml b/pyproject.toml
index a199beda..1d609f70 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,7 @@ dev = [
     "build >=0.7,<1.4",
     "mypy >=1.14,<2.0",
     "pdoc3 >=0.10,<0.12",
-    "ruff >=0.12.3,<0.13",         # formatter & linter
+    "ruff >=0.12.3,<0.15",         # formatter & linter
     "setuptools >=62,<81",
     "twine >=3.4,<6.3",            # PyPI
     "types-requests >=2.26,<3",    # mypy type hints