diff --git a/.mypy-baseline.txt b/.mypy-baseline.txt
index a63eed9ac..5ca49de6a 100644
--- a/.mypy-baseline.txt
+++ b/.mypy-baseline.txt
@@ -549,7 +549,6 @@ src/documents/serialisers.py:0: error: Function is missing a type annotation  [n
 src/documents/serialisers.py:0: error: Function is missing a type annotation  [no-untyped-def]
 src/documents/serialisers.py:0: error: Function is missing a type annotation  [no-untyped-def]
 src/documents/serialisers.py:0: error: Function is missing a type annotation  [no-untyped-def]
-src/documents/serialisers.py:0: error: Function is missing a type annotation  [no-untyped-def]
 src/documents/serialisers.py:0: error: Function is missing a type annotation for one or more arguments  [no-untyped-def]
 src/documents/serialisers.py:0: error: Function is missing a type annotation for one or more arguments  [no-untyped-def]
 src/documents/serialisers.py:0: error: Function is missing a type annotation for one or more arguments  [no-untyped-def]
@@ -1556,7 +1555,6 @@ src/documents/views.py:0: error: Function is missing a return type annotation  [
 src/documents/views.py:0: error: Function is missing a return type annotation  [no-untyped-def]
 src/documents/views.py:0: error: Function is missing a return type annotation  [no-untyped-def]
 src/documents/views.py:0: error: Function is missing a return type annotation  [no-untyped-def]
-src/documents/views.py:0: error: Function is missing a return type annotation  [no-untyped-def]
 src/documents/views.py:0: error: Function is missing a type annotation  [no-untyped-def]
 src/documents/views.py:0: error: Function is missing a type annotation  [no-untyped-def]
 src/documents/views.py:0: error: Function is missing a type annotation  [no-untyped-def]
diff --git a/src/documents/serialisers.py b/src/documents/serialisers.py
index 3e95d4545..5b591f6d3 100644
--- a/src/documents/serialisers.py
+++ b/src/documents/serialisers.py
@@ -3009,7 +3009,7 @@ class WorkflowSerializer(serializers.ModelSerializer):
 
         return instance
 
-    def to_representation(self, instance):
+    def to_representation(self, instance: Workflow) -> dict[str, Any]:
         data = super().to_representation(instance)
         actions = instance.actions.order_by("order", "pk")
         data["actions"] = WorkflowActionSerializer(
diff --git a/src/documents/views.py b/src/documents/views.py
index 73b54e562..d10eff44b 100644
--- a/src/documents/views.py
+++ b/src/documents/views.py
@@ -3368,7 +3368,7 @@ class SharedLinkView(View):
         return response
 
 
-def serve_file(*, doc: Document, use_archive: bool, disposition: str):
+def serve_file(*, doc: Document, use_archive: bool, disposition: str) -> HttpResponse:
     if use_archive:
         file_handle = doc.archive_file
         filename = doc.get_public_filename(archive=True)