diff --git a/requirements-testing.txt b/requirements-testing.txt
index e9755bf..7595213 100644
--- a/requirements-testing.txt
+++ b/requirements-testing.txt
@@ -3,7 +3,7 @@ pytest ~= 8.1
 pytest-cov ~= 4.1
 pytest-xdist ~= 3.5
 twine ~= 5.0
-mypy ~= 1.8
+mypy ~= 1.9
 black ~= 24.3
 ruff ~= 0.3.3
 types-pyyaml ~= 6.0
\ No newline at end of file