diff --git a/pyproject.toml b/pyproject.toml
index 128e8e89..1cf0ee72 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -71,7 +71,7 @@ Changelog = "https://github.com/dfetch-org/dfetch/blob/main/CHANGELOG.rst"
 [project.optional-dependencies]
 development = [
     # Quality dependencies
-    'black==25.1.0',
+    'black==25.9.0',
     'doc8==1.1.2',
     'pydocstyle==6.3.0',
     'radon==6.0.1',