diff --git a/docs/tutorials/create_a_model.ipynb b/docs/tutorials/create_a_model.ipynb
index c98c0956..612f0acc 100644
--- a/docs/tutorials/create_a_model.ipynb
+++ b/docs/tutorials/create_a_model.ipynb
@@ -21,7 +21,7 @@
     "\n",
     "# Create a new Model Card\n",
     "model = Model(\n",
-    "    name=\"MolGPS\", \n",
+    "    name=\"MolGPS\",\n",
     "    description=\"Graph transformer foundation model for molecular modeling\",\n",
     "    code_url=\"https://github.com/datamol-io/graphium\"\n",
     ")"
@@ -44,6 +44,27 @@
     "model.upload_to_hub(owner=\"your-username\")"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "If you want to upload a new version of your model, you can specify its previous version with the `parent_artifact_id` parameter. Don't forget to add a changelog describing your updates!"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "model.artifact_changelog = \"In this version, I added...\"\n",
+    "\n",
+    "model.upload_to_hub(\n",
+    "  owner=\"your-username\",\n",
+    "  parent_artifact_id=\"your-username/tutorial-example\"\n",
+    ")"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
diff --git a/polaris/benchmark/_base.py b/polaris/benchmark/_base.py
index 289e6010..67d73ba8 100644
--- a/polaris/benchmark/_base.py
+++ b/polaris/benchmark/_base.py
@@ -133,7 +133,7 @@ class BenchmarkSpecification(
     readme: str = ""
 
     # Version-related fields
-    artifact_version: int = 1
+    artifact_version: int = Field(default=1, frozen=True)
     artifact_changelog: str | None = None
 
     @computed_field
diff --git a/polaris/dataset/_base.py b/polaris/dataset/_base.py
index 5af73905..8ecccf98 100644
--- a/polaris/dataset/_base.py
+++ b/polaris/dataset/_base.py
@@ -86,7 +86,7 @@ class BaseDataset(BaseArtifactModel, abc.ABC):
     curation_reference: HttpUrlString | None = None
 
     # Version-related fields
-    artifact_version: int = 1
+    artifact_version: int = Field(default=1, frozen=True)
     artifact_changelog: str | None = None
 
     # Private attributes
diff --git a/polaris/hub/client.py b/polaris/hub/client.py
index a8ad82b9..30627312 100644
--- a/polaris/hub/client.py
+++ b/polaris/hub/client.py
@@ -942,6 +942,7 @@ def upload_model(
         model: Model,
         access: AccessType = "private",
         owner: HubOwner | str | None = None,
+        parent_artifact_id: str | None = None,
     ):
         """Upload a model to the Polaris Hub.
 
@@ -959,6 +960,7 @@ def upload_model(
             model: The model to upload.
             access: Grant public or private access to result
             owner: Which Hub user or organization owns the artifact. Takes precedence over `model.owner`.
+            parent_artifact_id: The `owner/slug` of the parent model, if uploading a new version of a model.
         """
         with track_progress(description="Uploading model", total=1) as (progress, task):
             # Get the serialized model data-structure
@@ -967,11 +969,16 @@ def upload_model(
 
             # Make a request to the Hub
             url = f"/v2/model/{model.artifact_id}"
-            response = self._base_request_to_hub(url=url, method="PUT", json={"access": access, **model_json})
+            response = self._base_request_to_hub(
+                url=url,
+                method="PUT",
+                json={"access": access, "parentArtifactId": parent_artifact_id, **model_json},
+            )
+
+            # NOTE: When we merge in the competition model feature, we will need to update the slug with the inserted model slug to make sure we write to the correct storage location.
 
             # Inform the user about where to find their newly created artifact.
             model_url = urljoin(self.settings.hub_url, response.headers.get("Content-Location"))
-
             progress.log(
                 f"[green]Your model has been successfully uploaded to the Hub. View it here: {model_url}"
             )
diff --git a/polaris/model/__init__.py b/polaris/model/__init__.py
index 7ed5db6d..a47d1dfa 100644
--- a/polaris/model/__init__.py
+++ b/polaris/model/__init__.py
@@ -1,6 +1,7 @@
 from polaris._artifact import BaseArtifactModel
 from polaris.utils.types import HttpUrlString
 from polaris.utils.types import AccessType, HubOwner
+from pydantic import Field
 
 
 class Model(BaseArtifactModel):
@@ -30,6 +31,8 @@ class Model(BaseArtifactModel):
         readme (str): A detailed README describing the model.
         code_url (HttpUrlString | None): Optional URL pointing to the model's code repository.
         report_url (HttpUrlString | None): Optional URL linking to a report or publication related to the model.
+        artifact_version: The version of the model.
+        artifact_changelog: A description of the changes made in this model version.
 
     Methods:
         upload_to_hub(access: AccessType = "private", owner: HubOwner | str | None = None):
@@ -44,11 +47,20 @@ class Model(BaseArtifactModel):
     code_url: HttpUrlString | None = None
     report_url: HttpUrlString | None = None
 
-    def upload_to_hub(self, access: AccessType = "private", owner: HubOwner | str | None = None):
+    # Version-related fields
+    artifact_version: int = Field(default=1, frozen=True)
+    artifact_changelog: str | None = None
+
+    def upload_to_hub(
+        self,
+        access: AccessType = "private",
+        owner: HubOwner | str | None = None,
+        parent_artifact_id: str | None = None,
+    ):
         """
         Uploads the model to the Polaris Hub.
         """
         from polaris.hub.client import PolarisHubClient
 
         with PolarisHubClient() as client:
-            client.upload_model(self, owner=owner, access=access)
+            client.upload_model(self, owner=owner, access=access, parent_artifact_id=parent_artifact_id)