diff --git a/packages/serialization/multipart/requirements-dev.txt b/packages/serialization/multipart/requirements-dev.txt
index 96963367..5c3e7245 100644
--- a/packages/serialization/multipart/requirements-dev.txt
+++ b/packages/serialization/multipart/requirements-dev.txt
@@ -5,5 +5,5 @@ yapf>=0.40.2,<0.44.0
 isort>=8.0.1,<9.0.0
 pylint>=3.2.7,<5.0.0
 mypy>=2.1.0,<3.0.0
-pytest>=8.3.2,<10.0.0
+pytest>=9.1.0,<10.0.0
 pytest-asyncio>=0.24,<1.4