diff --git a/readthedocs/api/v2/utils.py b/readthedocs/api/v2/utils.py
index c5a0bc8bfee..c16b351bb33 100644
--- a/readthedocs/api/v2/utils.py
+++ b/readthedocs/api/v2/utils.py
@@ -15,6 +15,7 @@
 from readthedocs.builds.constants import STABLE
 from readthedocs.builds.constants import STABLE_VERBOSE_NAME
 from readthedocs.builds.constants import TAG
+from readthedocs.builds.datatypes import VersionData
 from readthedocs.builds.models import RegexAutomationRule
 from readthedocs.builds.models import Version
 
@@ -168,10 +169,13 @@ def _set_or_create_version(project, slug, version_id, verbose_name, type_):
 
 
 def _get_deleted_versions_qs(project, tags_data, branches_data):
+    # Convert to VersionData if not already
+    tags_data = [VersionData(**v) if not isinstance(v, VersionData) else v for v in tags_data]
+    branches_data = [VersionData(**v) if not isinstance(v, VersionData) else v for v in branches_data]
     # We use verbose_name for tags
     # because several tags can point to the same identifier.
-    versions_tags = [version["verbose_name"] for version in tags_data]
-    versions_branches = [version["identifier"] for version in branches_data]
+    versions_tags = [version.verbose_name for version in tags_data]
+    versions_branches = [version.identifier for version in branches_data]
 
     to_delete_qs = (
         project.versions(manager=INTERNAL)
@@ -196,6 +200,9 @@ def delete_versions_from_db(project, tags_data, branches_data):
 
     :returns: The slug of the deleted versions from the database.
     """
+    # Convert to VersionData if not already
+    tags_data = [VersionData(**v) if not isinstance(v, VersionData) else v for v in tags_data]
+    branches_data = [VersionData(**v) if not isinstance(v, VersionData) else v for v in branches_data]
     to_delete_qs = _get_deleted_versions_qs(
         project=project,
         tags_data=tags_data,
@@ -212,6 +219,9 @@ def delete_versions_from_db(project, tags_data, branches_data):
 
 def get_deleted_active_versions(project, tags_data, branches_data):
     """Return the slug of active versions that were deleted from the repository."""
+    # Convert to VersionData if not already
+    tags_data = [VersionData(**v) if not isinstance(v, VersionData) else v for v in tags_data]
+    branches_data = [VersionData(**v) if not isinstance(v, VersionData) else v for v in branches_data]
     to_delete_qs = _get_deleted_versions_qs(
         project=project,
         tags_data=tags_data,
diff --git a/readthedocs/builds/datatypes.py b/readthedocs/builds/datatypes.py
new file mode 100644
index 00000000000..eebc72f59a1
--- /dev/null
+++ b/readthedocs/builds/datatypes.py
@@ -0,0 +1,6 @@
+from dataclasses import dataclass
+
+@dataclass
+class VersionData:
+    identifier: str
+    verbose_name: str 
\ No newline at end of file
diff --git a/readthedocs/builds/tasks.py b/readthedocs/builds/tasks.py
index f23c8f2aa58..f62d6ea89b0 100644
--- a/readthedocs/builds/tasks.py
+++ b/readthedocs/builds/tasks.py
@@ -1,5 +1,6 @@
 import json
 from io import BytesIO
+import dataclasses
 
 import requests
 import structlog
@@ -25,6 +26,7 @@
 from readthedocs.builds.constants import LOCK_EXPIRE
 from readthedocs.builds.constants import MAX_BUILD_COMMAND_SIZE
 from readthedocs.builds.constants import TAG
+from readthedocs.builds.datatypes import VersionData
 from readthedocs.builds.models import Build
 from readthedocs.builds.models import Version
 from readthedocs.builds.reporting import get_build_overview
@@ -294,6 +296,8 @@ def sync_versions_task(project_pk, tags_data, branches_data, **kwargs):
                       ].
     :returns: `True` or `False` if the task succeeded.
     """
+    tags_data = [VersionData(**d) for d in tags_data]
+    branches_data = [VersionData(**d) for d in branches_data]
     project = Project.objects.get(pk=project_pk)
 
     # If the currently highest non-prerelease version is active, then make
@@ -309,27 +313,27 @@ def sync_versions_task(project_pk, tags_data, branches_data, **kwargs):
         added_versions = set()
         result = sync_versions_to_db(
             project=project,
-            versions=tags_data,
+            versions=[dataclasses.asdict(v) for v in tags_data],
             type=TAG,
         )
         added_versions.update(result)
 
         result = sync_versions_to_db(
             project=project,
-            versions=branches_data,
+            versions=[dataclasses.asdict(v) for v in branches_data],
             type=BRANCH,
         )
         added_versions.update(result)
 
         delete_versions_from_db(
             project=project,
-            tags_data=tags_data,
-            branches_data=branches_data,
+            tags_data=[dataclasses.asdict(v) for v in tags_data],
+            branches_data=[dataclasses.asdict(v) for v in branches_data],
         )
         deleted_active_versions = get_deleted_active_versions(
             project=project,
-            tags_data=tags_data,
-            branches_data=branches_data,
+            tags_data=[dataclasses.asdict(v) for v in tags_data],
+            branches_data=[dataclasses.asdict(v) for v in branches_data],
         )
     except Exception:
         log.exception("Sync Versions Error")
diff --git a/readthedocs/projects/tasks/mixins.py b/readthedocs/projects/tasks/mixins.py
index d7df81dcc09..0391c04a2fc 100644
--- a/readthedocs/projects/tasks/mixins.py
+++ b/readthedocs/projects/tasks/mixins.py
@@ -6,6 +6,8 @@
 from readthedocs.builds.constants import LATEST_VERBOSE_NAME
 from readthedocs.builds.constants import STABLE_VERBOSE_NAME
 from readthedocs.builds.models import APIVersion
+from readthedocs.builds.datatypes import VersionData
+import dataclasses
 
 from ..exceptions import RepositoryError
 from ..models import Feature
@@ -50,18 +52,12 @@ def sync_versions(self, vcs_repository):
         )
 
         tags_data = [
-            {
-                "identifier": v.identifier,
-                "verbose_name": v.verbose_name,
-            }
+            VersionData(identifier=v.identifier, verbose_name=v.verbose_name)
             for v in tags
         ]
 
         branches_data = [
-            {
-                "identifier": v.identifier,
-                "verbose_name": v.verbose_name,
-            }
+            VersionData(identifier=v.identifier, verbose_name=v.verbose_name)
             for v in branches
         ]
 
@@ -74,8 +70,8 @@ def sync_versions(self, vcs_repository):
 
         build_tasks.sync_versions_task.delay(
             project_pk=self.data.project.pk,
-            tags_data=tags_data,
-            branches_data=branches_data,
+            tags_data=[dataclasses.asdict(v) for v in tags_data],
+            branches_data=[dataclasses.asdict(v) for v in branches_data],
         )
 
     def validate_duplicate_reserved_versions(self, tags_data, branches_data):
@@ -88,7 +84,7 @@ def validate_duplicate_reserved_versions(self, tags_data, branches_data):
 
         :param data: Dict containing the versions from tags and branches
         """
-        version_names = [version["verbose_name"] for version in tags_data + branches_data]
+        version_names = [version.verbose_name for version in tags_data + branches_data]
         counter = Counter(version_names)
         for reserved_name in [STABLE_VERBOSE_NAME, LATEST_VERBOSE_NAME]:
             if counter[reserved_name] > 1: