diff --git a/pyproject.toml b/pyproject.toml
index 610c44cd47d..76a4f0e4ef9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ dependencies = [
   "marshmallow-dataclass==8.7.1",
   "marshmallow-jsonschema~=0.13.0",
   "marshmallow-union~=0.1.15",
-  "marshmallow~=3.26.1",
+  "marshmallow~=4.2.0",
   "pywin32 ; platform_system=='Windows'",
   # FIXME: pytoml is outdated and should not be used
   "pytoml==0.1.21",