diff --git a/pyproject.toml b/pyproject.toml
index 5355e3f..47bd98a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ dynamic = ["readme"]
 
 [project.optional-dependencies]
 dev = [
-    "black==23.10.0",
+    "black==26.3.1",
     "pytest>=7.0",
     "coverage[toml]>=5.0.0",
     "ruff==0.1.0"