diff --git a/.changeset/shiny-paws-wave.md b/.changeset/shiny-paws-wave.md
new file mode 100644
index 0000000000000..f9e25cfac8700
--- /dev/null
+++ b/.changeset/shiny-paws-wave.md
@@ -0,0 +1,5 @@
+---
+"@mysten/sui.js": patch
+---
+
+Make getOwnedObjects backward compatible from 0.29 to 0.30.
diff --git a/sdk/typescript/src/types/objects.ts b/sdk/typescript/src/types/objects.ts
index 63ac8a05a7105..4b4e2637d0018 100644
--- a/sdk/typescript/src/types/objects.ts
+++ b/sdk/typescript/src/types/objects.ts
@@ -425,7 +425,8 @@ export type CheckpointedObjectId = Infer<typeof CheckpointedObjectId>;
 
 export const PaginatedObjectsResponse = object({
   data: array(SuiObjectResponse),
-  nextCursor: nullable(ObjectId),
+  // TODO: remove union after 0.30.0 is released
+  nextCursor: union([nullable(ObjectId), nullable(CheckpointedObjectId)]),
   hasNextPage: boolean(),
 });
 export type PaginatedObjectsResponse = Infer<typeof PaginatedObjectsResponse>;