diff --git a/requirements_test.txt b/requirements_test.txt
index 0f390f32..1cabfd4e 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -1,5 +1,5 @@
 ruff==0.0.289
-black==23.7.0
+black==23.9.1
 build==0.10.0
 coverage==7.3.0
 pytest==7.4.0