diff --git a/src/BootstrapBlazor/BootstrapBlazor.csproj b/src/BootstrapBlazor/BootstrapBlazor.csproj
index 1b093048ed25d849c94cde7f2d5b371719a9f718..024c1e6a2f93cffb26e52614973d41946e2bb91c 100644
--- a/src/BootstrapBlazor/BootstrapBlazor.csproj
+++ b/src/BootstrapBlazor/BootstrapBlazor.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>6.4.7</Version>
+    <Version>6.4.8</Version>
   </PropertyGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net5.0'">
diff --git a/test/UnitTest/Components/ClipboardServiceTest.cs b/test/UnitTest/Components/ClipboardServiceTest.cs
new file mode 100644
index 0000000000000000000000000000000000000000..386e12870dbf8f17adfd44efd785155f052de3a3
--- /dev/null
+++ b/test/UnitTest/Components/ClipboardServiceTest.cs
@@ -0,0 +1,36 @@
+// Copyright (c) Argo Zhang (argo@163.com). All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+// Website: https://www.blazor.zone or https://argozhang.github.io/
+
+using Microsoft.AspNetCore.Components.Rendering;
+
+namespace UnitTest.Components;
+
+public class ClipboardServiceTest : BootstrapBlazorTestBase
+{
+    [Fact]
+    public void Clipboard_Ok()
+    {
+        var cut = Context.RenderComponent<BootstrapBlazorRoot>(pb =>
+        {
+            pb.AddChildContent<MockClipboardServiceTest>();
+        });
+        var comp = cut.FindComponent<MockClipboardServiceTest>();
+        comp.Instance.Copy(null, () => Task.CompletedTask);
+        comp.Instance.Copy("Test", () => Task.CompletedTask);
+    }
+
+    private class MockClipboardServiceTest : ComponentBase
+    {
+        [Inject]
+        [NotNull]
+        public ClipboardService? ClipboardService { get; set; }
+
+        protected override void BuildRenderTree(RenderTreeBuilder builder)
+        {
+            base.BuildRenderTree(builder);
+        }
+
+        public Task Copy(string? text, Func<Task> callback) => ClipboardService.Copy(text, callback);
+    }
+}