diff --git a/packages/serialization/multipart/requirements-dev.txt b/packages/serialization/multipart/requirements-dev.txt
index 4054c47c..96963367 100644
--- a/packages/serialization/multipart/requirements-dev.txt
+++ b/packages/serialization/multipart/requirements-dev.txt
@@ -4,6 +4,6 @@
 yapf>=0.40.2,<0.44.0
 isort>=8.0.1,<9.0.0
 pylint>=3.2.7,<5.0.0
-mypy>=1.11.2,<3.0.0
+mypy>=2.1.0,<3.0.0
 pytest>=8.3.2,<10.0.0
 pytest-asyncio>=0.24,<1.4