diff --git a/pyproject.toml b/pyproject.toml
index 59f6928..58c142f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ reqstool-python-decorators = "0.0.7"
 poetry-dynamic-versioning = "1.8.2"
 
 [tool.poetry.group.dev.dependencies]
-black = { version = "25.1.0" }
+black = { version = "25.9.0" }
 flake8 = { version = "7.3.0" }
 flake8-pyproject = { version = "1.2.3" }
 pytest = { version = "8.3.5" }