diff --git a/requirements-dev.txt b/requirements-dev.txt
index 4375b18..c48ce47 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,6 +5,6 @@ sphinx==4.4.0
 sphinx-argparse==0.4.0
 pytest_httpx==0.22.0
 pytest-cov==3.0.0
-black==24.3.0
+black==26.3.1
 ruff==0.0.280
 pre-commit==2.21.0