diff --git a/openpype/hosts/unreal/plugins/publish/collect_render_instances.py b/openpype/hosts/unreal/plugins/publish/collect_render_instances.py
index 6697a6b90d..a352b2c3f3 100644
--- a/openpype/hosts/unreal/plugins/publish/collect_render_instances.py
+++ b/openpype/hosts/unreal/plugins/publish/collect_render_instances.py
@@ -73,8 +73,8 @@ class CollectRenderInstances(pyblish.api.InstancePlugin):
                     new_data["level"] = data.get("level")
                     new_data["output"] = s.get('output')
                     new_data["fps"] = seq.get_display_rate().numerator
-                    new_data["frameStart"] = s.get('frame_range')[0]
-                    new_data["frameEnd"] = s.get('frame_range')[1]
+                    new_data["frameStart"] = int(s.get('frame_range')[0])
+                    new_data["frameEnd"] = int(s.get('frame_range')[1])
                     new_data["sequence"] = seq.get_path_name()
                     new_data["master_sequence"] = data["master_sequence"]
                     new_data["master_level"] = data["master_level"]