diff --git a/requirements-dev.txt b/requirements-dev.txt
index 7accc3a3c..aa17f83cc 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,7 +5,7 @@ pytest-cov==7.0.0
 
 # --- Lint / format / typecheck ---
 ruff==0.14.14
-black==26.1.0
+black==26.3.1
 pre-commit==4.5.1
 mypy==1.19.1