diff --git a/docs/CHANGELOG.rst b/docs/CHANGELOG.rst
index 124f0c663..8fd542ce2 100644
--- a/docs/CHANGELOG.rst
+++ b/docs/CHANGELOG.rst
@@ -6,6 +6,15 @@ All notable changes to this project are documented in this file.
 This project adheres to `Semantic Versioning <http://semver.org/>`_.
 
 
+===================
+42.0.2 - 2024-12-02
+===================
+
+Fixed
+-----
+- Fix ``AnnotationValueViewSet`` crash when removing the delete markers
+
+
 ===================
 42.0.1 - 2024-11-21
 ===================
diff --git a/resolwe/flow/models/annotations.py b/resolwe/flow/models/annotations.py
index 358df6d75..e80abd131 100644
--- a/resolwe/flow/models/annotations.py
+++ b/resolwe/flow/models/annotations.py
@@ -517,9 +517,9 @@ def delete_marker(self) -> bool:
         return self._value is None
 
     @property
-    def value(self) -> str | int | float | datetime.date:
-        """Get the actual value."""
-        return self._value["value"]
+    def value(self) -> Optional[str | int | float | datetime.date]:
+        """Get the actual value or None if object is delete marker."""
+        return None if self.delete_marker else self._value["value"]
 
     @value.setter
     def value(self, value: str | int | float | datetime.date):
diff --git a/resolwe/flow/tests/test_annotations.py b/resolwe/flow/tests/test_annotations.py
index 4c6bc7147..e9896f92c 100644
--- a/resolwe/flow/tests/test_annotations.py
+++ b/resolwe/flow/tests/test_annotations.py
@@ -1270,6 +1270,20 @@ def test_list_filter_values(self):
         self.assertTrue(response.data[0]["value"], "string")
         self.assertTrue(response.data[0]["label"], "label string")
 
+        # Test delete markers are handled properly.
+        delete_marker = AnnotationValue.objects.create(
+            entity=self.annotation_value1.entity,
+            field=self.annotation_value1.field,
+            _value=None,
+            contributor=self.annotation_value1.contributor,
+        )
+        request = factory.get("/", {"entity": self.entity1.pk}, format="json")
+        force_authenticate(request, self.contributor)
+        response = self.annotationvalue_viewset(request)
+        self.assertTrue(response.status_code, status.HTTP_200_OK)
+        self.assertEqual(len(response.data), 0)
+        delete_marker.delete()
+
         # Another authenticated request.
         self.annotation_value2.entity = self.entity1
         self.annotation_value2.save()