diff --git a/dandiapi/api/services/version/metadata.py b/dandiapi/api/services/version/metadata.py
index ed3f10011..bc04c8114 100644
--- a/dandiapi/api/services/version/metadata.py
+++ b/dandiapi/api/services/version/metadata.py
@@ -43,4 +43,6 @@ def _normalize_version_metadata(
     }
     # Run the version_metadata through the pydantic model to automatically include any boilerplate
     # like the access or repository fields
-    return PydanticDandiset.unvalidated(**version_metadata).json_dict()
+    return PydanticDandiset.model_construct(**version_metadata).model_dump(
+        mode='json', exclude_none=True
+    )
diff --git a/dandiapi/api/tests/test_tasks.py b/dandiapi/api/tests/test_tasks.py
index 80ea1d39e..bfffb13f0 100644
--- a/dandiapi/api/tests/test_tasks.py
+++ b/dandiapi/api/tests/test_tasks.py
@@ -153,7 +153,7 @@ def test_validate_asset_metadata_no_digest(draft_asset: Asset):
 
     assert draft_asset.status == Asset.Status.INVALID
     assert draft_asset.validation_errors == [
-        {'field': 'digest', 'message': 'A non-zarr asset must have a sha2_256.'}
+        {'field': 'digest', 'message': 'Value error, A non-zarr asset must have a sha2_256.'}
     ]
 
 
@@ -292,7 +292,8 @@ def test_validate_version_metadata_no_assets(
     assert draft_version.validation_errors == [
         {
             'field': 'assetsSummary',
-            'message': 'A Dandiset containing no files or zero bytes is not publishable',
+            'message': 'Value error, '
+            'A Dandiset containing no files or zero bytes is not publishable',
         }
     ]
 
diff --git a/setup.py b/setup.py
index 71cb5b6ad..1f10b04df 100644
--- a/setup.py
+++ b/setup.py
@@ -40,7 +40,7 @@
     include_package_data=True,
     install_requires=[
         'celery',
-        'dandischema~=0.8.4',
+        'dandischema~=0.9.0',
         'django~=4.1.0',
         'django-admin-display',
         # Require 0.58.0 as it is the first version to support postgres' native
diff --git a/web/src/components/Meditor/types.ts b/web/src/components/Meditor/types.ts
index c6b0a7fae..5ca93b13f 100644
--- a/web/src/components/Meditor/types.ts
+++ b/web/src/components/Meditor/types.ts
@@ -65,7 +65,7 @@ export const isJSONSchema = (schema: JSONSchemaUnionType): schema is JSONSchema7
 
 export const isBasicSchema = (schema: JSONSchemaUnionType): schema is BasicSchema => (
   isJSONSchema(schema)
-  && isBasicType(schema.type)
+  && (isBasicType(schema.type) || schema.type === undefined)
 );
 
 export const isObjectSchema = (schema: JSONSchemaUnionType): schema is ObjectSchema => (
diff --git a/web/src/views/CreateDandisetView/CreateDandisetView.vue b/web/src/views/CreateDandisetView/CreateDandisetView.vue
index e6c834683..7fb952f2a 100644
--- a/web/src/views/CreateDandisetView/CreateDandisetView.vue
+++ b/web/src/views/CreateDandisetView/CreateDandisetView.vue
@@ -181,7 +181,7 @@ const descriptionMaxLength: ComputedRef<number> = computed(
   () => store.schema.properties.description.maxLength,
 );
 const dandiLicenses: ComputedRef<LicenseType[]> = computed(
-  () => store.schema.definitions.LicenseType.enum,
+  () => store.schema.$defs.LicenseType.enum,
 );
 
 if (!loggedIn()) {