diff --git a/requirements-test.txt b/requirements-test.txt
index 2076c56..7b24b23 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -1,4 +1,4 @@
-black==23.7.0
+black==23.9.1
 flake8==6.1.0
 isort==5.12.0
 mypy==1.5.1