diff --git a/sagemaker-core/src/sagemaker/core/jumpstart/models.py b/sagemaker-core/src/sagemaker/core/jumpstart/models.py
index 8b1b282224..ac4450f772 100644
--- a/sagemaker-core/src/sagemaker/core/jumpstart/models.py
+++ b/sagemaker-core/src/sagemaker/core/jumpstart/models.py
@@ -473,6 +473,8 @@ class HubContentDocument(HostingComponentsModel, TrainingComponentsModel):
     The HubContentDocument class represents the metadata for a JumpStart model.
     """
 
+    model_config = ConfigDict(validate_assignment=True, extra="ignore")
+
     ModelTypes: List[ModelTypeEnum]
     Url: str
     MinSdkVersion: Optional[str] = None