diff --git a/lambda/requirements-dev.txt b/lambda/requirements-dev.txt
index c887a56..34c1c2a 100644
--- a/lambda/requirements-dev.txt
+++ b/lambda/requirements-dev.txt
@@ -2,7 +2,7 @@
 pytest==9.0.2
 pytest-cov==7.0.0
 pytest-xdist==3.8.0
-black==25.12.0
+black==26.1.0
 isort==7.0.0
 flake8==7.3.0
 Flake8-pyproject==1.2.4