diff --git a/app/model/document.py b/app/model/document.py
index cf0ffcde..87ca3ade 100644
--- a/app/model/document.py
+++ b/app/model/document.py
@@ -29,7 +29,18 @@ class DocumentReadDTO(BaseModel):
     # languages: list[]
 
 
-DocumentWriteDTO = DocumentReadDTO
+class DocumentWriteDTO(BaseModel):
+    """Representation of a Document."""
+
+    # From FamilyDocument
+    import_id: str
+    variant_name: str
+    role: str
+    type: str
+    title: str
+    source_url: str
+    # TODO: Languages for a document
+    # languages: list[]
 
 
 class DocumentUploadRequest(BaseModel):
diff --git a/app/repository/document.py b/app/repository/document.py
index a4b390ed..437d15dd 100644
--- a/app/repository/document.py
+++ b/app/repository/document.py
@@ -10,7 +10,7 @@
     Variant,
 )
 from app.errors import RepositoryError
-from app.model.document import DocumentReadDTO
+from app.model.document import DocumentReadDTO, DocumentWriteDTO
 from app.clients.db.models.document.physical_document import (
     Language,
     LanguageSource,
@@ -153,7 +153,7 @@ def search(db: Session, search_term: str) -> list[DocumentReadDTO]:
     return [_document_to_dto(d) for d in found]
 
 
-def update(db: Session, document: DocumentReadDTO) -> bool:
+def update(db: Session, document: DocumentWriteDTO) -> bool:
     """
     Updates a single entry with the new values passed.
 
@@ -188,18 +188,39 @@ def update(db: Session, document: DocumentReadDTO) -> bool:
         )
         return False
 
-    result = db.execute(
+    update_slug = original_pd.title != new_values["title"]
+
+    commands = [
         db_update(PhysicalDocument)
         .where(PhysicalDocument.id == original_pd.id)
         .values(
             title=new_values["title"],
-        )
-    )
+            source_url=new_values["source_url"],
+        ),
+        db_update(FamilyDocument)
+        .where(FamilyDocument.import_id == original_fd.import_id)
+        .values(
+            variant_name=new_values["variant_name"],
+            document_role=new_values["role"],
+            document_type=new_values["type"],
+        ),
+    ]
+
+    for c in commands:
+        result = db.execute(c)
+
     if result.rowcount == 0:  # type: ignore
         msg = f"Could not update document fields: {document}"
         _LOGGER.error(msg)
         raise RepositoryError(msg)
 
+    if update_slug:
+        db.add(
+            Slug(
+                family_document_import_id=original_fd.import_id,
+                name=generate_slug(db, new_values["title"]),
+            )
+        )
     return True
 
 
diff --git a/app/service/document.py b/app/service/document.py
index 8595502b..d6737c85 100644
--- a/app/service/document.py
+++ b/app/service/document.py
@@ -105,7 +105,7 @@ def update(
 @db_session.with_transaction(__name__)
 @validate_call(config=ConfigDict(arbitrary_types_allowed=True))
 def create(
-    document: DocumentWriteDTO, db: Session = db_session.get_db()
+    document: DocumentReadDTO, db: Session = db_session.get_db()
 ) -> Optional[DocumentReadDTO]:
     """
         Creates a new document with the values passed.
diff --git a/integration_tests/document/test_update.py b/integration_tests/document/test_update.py
index de4647aa..9b8253c9 100644
--- a/integration_tests/document/test_update.py
+++ b/integration_tests/document/test_update.py
@@ -3,7 +3,8 @@
 from fastapi import status
 from sqlalchemy.orm import Session
 from app.clients.db.models.document.physical_document import PhysicalDocument
-from app.clients.db.models.law_policy.family import FamilyDocument
+from app.clients.db.models.law_policy.family import FamilyDocument, Slug
+from app.model.document import DocumentWriteDTO
 
 from integration_tests.setup_db import EXPECTED_DOCUMENTS, setup_db
 from unit_tests.helpers.document import create_document_dto
@@ -31,10 +32,13 @@ def _get_doc_tuple(
 
 def test_update_document(client: TestClient, test_db: Session, user_header_token):
     setup_db(test_db)
-    new_document = create_document_dto(
+    new_document = DocumentWriteDTO(
         import_id="D.0.0.2",
-        family_import_id="A.0.0.3",
+        variant_name="Translation",
+        role="SUMMARY",
+        type="Annex",
         title="Updated Title",
+        source_url="Updated Source",
     )
     response = client.put(
         "/api/v1/documents",
@@ -43,10 +47,27 @@ def test_update_document(client: TestClient, test_db: Session, user_header_token
     )
     assert response.status_code == status.HTTP_200_OK
     data = response.json()
+    assert data["import_id"] == "D.0.0.2"
+    assert data["variant_name"] == "Translation"
+    assert data["role"] == "SUMMARY"
+    assert data["type"] == "Annex"
     assert data["title"] == "Updated Title"
+    assert data["source_url"] == "Updated Source"
 
     fd, pd = _get_doc_tuple(test_db, "D.0.0.2")
+    assert fd.import_id == "D.0.0.2"
+    assert fd.variant_name == "Translation"
+    assert fd.document_role == "SUMMARY"
+    assert fd.document_type == "Annex"
     assert pd.title == "Updated Title"
+    assert pd.source_url == "Updated Source"
+
+    # Check slug is updated too
+    slugs = (
+        test_db.query(Slug).filter(Slug.family_document_import_id == "D.0.0.2").all()
+    )
+    last_slug = slugs[-1].name
+    assert last_slug.startswith("updated-title")
 
 
 def test_update_document_when_not_authorised(client: TestClient, test_db: Session):
diff --git a/unit_tests/mocks/services/document_service.py b/unit_tests/mocks/services/document_service.py
index 943a94df..da9d916c 100644
--- a/unit_tests/mocks/services/document_service.py
+++ b/unit_tests/mocks/services/document_service.py
@@ -33,18 +33,16 @@ def mock_search_documents(q: str) -> list[DocumentReadDTO]:
     def mock_update_document(data: DocumentWriteDTO) -> Optional[DocumentReadDTO]:
         maybe_throw()
         if not document_service.missing:
-            return create_document_dto(
-                data.import_id, data.family_import_id, data.title
-            )
+            return create_document_dto(data.import_id, "family_import_id", data.title)
 
-    def mock_create_document(data: DocumentWriteDTO) -> Optional[DocumentReadDTO]:
+    def mock_create_document(data: DocumentReadDTO) -> Optional[DocumentReadDTO]:
         maybe_throw()
         if not document_service.missing:
             return create_document_dto(
                 data.import_id, data.family_import_id, data.title
             )
 
-    def mock_delete_document(import_id: str) -> bool:
+    def mock_delete_document(_) -> bool:
         maybe_throw()
         return not document_service.missing
 
diff --git a/unit_tests/service/test_document_service.py b/unit_tests/service/test_document_service.py
index 5cf05ad5..7825f47d 100644
--- a/unit_tests/service/test_document_service.py
+++ b/unit_tests/service/test_document_service.py
@@ -1,4 +1,3 @@
-from typing import cast
 import pytest
 from app.model.document import DocumentReadDTO, DocumentWriteDTO
 import app.service.document as doc_service
@@ -7,7 +6,14 @@
 
 
 def _to_write_dto(dto: DocumentReadDTO) -> DocumentWriteDTO:
-    return cast(DocumentWriteDTO, dto)
+    return DocumentWriteDTO(
+        import_id=dto.import_id,
+        variant_name=dto.variant_name,
+        role=dto.role,
+        type=dto.type,
+        title=dto.title,
+        source_url=dto.source_url,
+    )
 
 
 def test_document_service_get_upload_details(test_s3_client):
@@ -140,7 +146,7 @@ def test_update_raises_when_invalid_id(
 
 def test_create(document_repo_mock, family_repo_mock):
     new_document = create_dto(import_id="A.0.0.5")
-    document = doc_service.create(_to_write_dto(new_document))
+    document = doc_service.create(new_document)
     assert document is not None
     assert document_repo_mock.create.call_count == 1
     assert family_repo_mock.get.call_count == 1
@@ -149,7 +155,7 @@ def test_create(document_repo_mock, family_repo_mock):
 def test_create_when_db_fails(document_repo_mock, family_repo_mock):
     new_document = create_dto(import_id="a.b.c.d")
     document_repo_mock.return_empty = True
-    document = doc_service.create(_to_write_dto(new_document))
+    document = doc_service.create(new_document)
     assert document is None
     assert document_repo_mock.create.call_count == 1
     assert family_repo_mock.get.call_count == 1
@@ -158,7 +164,7 @@ def test_create_when_db_fails(document_repo_mock, family_repo_mock):
 def test_create_raises_when_invalid_id(document_repo_mock):
     new_document = create_dto(import_id="invalid")
     with pytest.raises(ValidationError) as e:
-        doc_service.create(_to_write_dto(new_document))
+        doc_service.create(new_document)
     expected_msg = f"The import id {new_document.import_id} is invalid!"
     assert e.value.message == expected_msg
     assert document_repo_mock.create.call_count == 0
@@ -167,7 +173,7 @@ def test_create_raises_when_invalid_id(document_repo_mock):
 def test_create_raises_when_invalid_family_id(document_repo_mock):
     new_document = create_dto(import_id="a.b.c.d", family_import_id="invalid family")
     with pytest.raises(ValidationError) as e:
-        doc_service.create(_to_write_dto(new_document))
+        doc_service.create(new_document)
     expected_msg = f"The import id {new_document.family_import_id} is invalid!"
     assert e.value.message == expected_msg
     assert document_repo_mock.create.call_count == 0