diff --git a/test/usdc/options/private.write.test.ts b/test/usdc/options/private.write.test.ts
index 194287e..fe3e758 100644
--- a/test/usdc/options/private.write.test.ts
+++ b/test/usdc/options/private.write.test.ts
@@ -135,7 +135,10 @@ describe('Private USDC Options REST API POST Endpoints', () => {
 
   it('setMarginMode()', async () => {
     expect(await api.setMarginMode('REGULAR_MARGIN')).toMatchObject(
-      successResponseObjectV3()
+      {
+        retCode: API_ERROR_CODE.SET_MARGIN_MODE_FAILED_USDC,
+      }
+      // successResponseObjectV3()
     );
   });
 
diff --git a/test/usdc/perpetual/private.write.test.ts b/test/usdc/perpetual/private.write.test.ts
index 9eaf4ba..f70b6ee 100644
--- a/test/usdc/perpetual/private.write.test.ts
+++ b/test/usdc/perpetual/private.write.test.ts
@@ -73,7 +73,6 @@ describe('Private USDC Perp REST API POST Endpoints', () => {
     expect(await api.setMarginMode('REGULAR_MARGIN')).toMatchObject(
       {
         retCode: API_ERROR_CODE.SET_MARGIN_MODE_FAILED_USDC,
-        retMsg: '',
       }
       // successResponseObjectV3()
     );