diff --git a/requirements-tests.txt b/requirements-tests.txt
index 5443019..ac8724d 100644
--- a/requirements-tests.txt
+++ b/requirements-tests.txt
@@ -4,7 +4,7 @@ autoflake
 ellar-cli >= 0.3.7
 factory-boy >= 3.3.0
 httpx
-mypy == 1.8.0
+mypy == 1.9.0
 pytest >= 7.1.3,< 9.0.0
 pytest-asyncio
 pytest-cov >= 2.12.0,<5.0.0