diff --git a/requirements-testing.txt b/requirements-testing.txt
index 50af2641..07f252be 100644
--- a/requirements-testing.txt
+++ b/requirements-testing.txt
@@ -9,7 +9,7 @@ freezegun == 1.*
 types-pyyaml == 6.*
 twine == 4.*; python_version == '3.7'
 twine == 5.*; python_version > '3.7'
-black == 24.3.*; python_version > '3.7'
+black == 24.4.*; python_version > '3.7'
 mypy == 1.4.*; python_version == '3.7'
 mypy == 1.*; python_version > '3.7'
 ruff == 0.3.*