diff --git a/Contentstack.Management.Core.Tests/Contentstack.Management.Core.Tests.csproj b/Contentstack.Management.Core.Tests/Contentstack.Management.Core.Tests.csproj
index f8be953..076a59c 100644
--- a/Contentstack.Management.Core.Tests/Contentstack.Management.Core.Tests.csproj
+++ b/Contentstack.Management.Core.Tests/Contentstack.Management.Core.Tests.csproj
@@ -35,11 +35,6 @@
   <ItemGroup>
     <EmbeddedResource Include="Mock\*.json" />
   </ItemGroup>
-  <ItemGroup>
-    <Content Include="appsettings.json">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-  </ItemGroup>
   <ItemGroup>
     <None Remove="Microsoft.AspNetCore.Http" />
   </ItemGroup>
diff --git a/Contentstack.Management.Core/Services/Stack/BulkOperation/BulkUnpublishService.cs b/Contentstack.Management.Core/Services/Stack/BulkOperation/BulkUnpublishService.cs
index 8d9689d..0993409 100644
--- a/Contentstack.Management.Core/Services/Stack/BulkOperation/BulkUnpublishService.cs
+++ b/Contentstack.Management.Core/Services/Stack/BulkOperation/BulkUnpublishService.cs
@@ -38,12 +38,12 @@ public BulkUnpublishService(JsonSerializer serializer, Contentstack.Management.C
             // Set headers based on parameters
             if (_skipWorkflowStage)
             {
-                Headers["skip_workflow_stage_check"] = "true";
+                AddQueryResource("skip_workflow_stage_check", "true");
             }
 
             if (_approvals)
             {
-                Headers["approvals"] = "true";
+                AddQueryResource("approvals", "true");
             }
 
             if (_isNested)