diff --git a/BlazorWasmPreRendering.Build.Test/ProgramE2ETest.cs b/BlazorWasmPreRendering.Build.Test/ProgramE2ETest.cs
index 03b3f8c..ede0e46 100644
--- a/BlazorWasmPreRendering.Build.Test/ProgramE2ETest.cs
+++ b/BlazorWasmPreRendering.Build.Test/ProgramE2ETest.cs
@@ -354,11 +354,40 @@ public async Task Publish_Test()
             serviceWorkerAssetsJs = Regex.Replace(serviceWorkerAssetsJs, ";\\s*$", "");
             var assetsManifestFile = JsonSerializer.Deserialize<AssetsManifestFile>(serviceWorkerAssetsJs);
             var assetManifestEntry = assetsManifestFile?.assets?.First(a => a.url == "index.html");
-            assetManifestEntry.IsNotNull();
-            assetManifestEntry!.hash.Is(hash);
+            assetManifestEntry.IsNotNull().hash.Is(hash);
         }
     }
 
+    [Test]
+    public async Task Publish_with_Compression_Test()
+    {
+        // Given
+        using var sampleAppWorkDir = SampleSite.CreateSampleAppsWorkDir();
+        var projectDir = Path.Combine(sampleAppWorkDir, "BlazorWasmApp0");
+
+        // When
+        var dotnetCLI = await Start("dotnet", "publish -c:Release -o:bin/publish", projectDir).WaitForExitAsync();
+        dotnetCLI.ExitCode.Is(0, message: dotnetCLI.Output);
+
+        // Then
+
+        // Validate prerendered contents.
+        var wwwrootDir = Path.Combine(projectDir, "bin", "publish", "wwwroot");
+        ValidatePrerenderedContentsOfApp0(wwwrootDir);
+
+        // Validate PWA assets manifest.
+        var indexHtmlBytes = File.ReadAllBytes(Path.Combine(wwwrootDir, "index.html"));
+        using var sha256 = SHA256.Create();
+        var hash = "sha256-" + Convert.ToBase64String(sha256.ComputeHash(indexHtmlBytes));
+
+        var serviceWorkerAssetsJs = File.ReadAllText(Path.Combine(wwwrootDir, "my-assets.js"));
+        serviceWorkerAssetsJs = Regex.Replace(serviceWorkerAssetsJs, @"^self\.assetsManifest\s*=\s*", "");
+        serviceWorkerAssetsJs = Regex.Replace(serviceWorkerAssetsJs, ";\\s*$", "");
+        var assetsManifestFile = JsonSerializer.Deserialize<AssetsManifestFile>(serviceWorkerAssetsJs);
+        var assetManifestEntry = assetsManifestFile?.assets?.First(a => a.url == "index.html");
+        assetManifestEntry.IsNotNull().hash.Is(hash);
+    }
+
     [Test, Platform("Win")]
     public async Task Publish_by_native_msbuild_Test()
     {
diff --git a/BlazorWasmPreRendering.Build/build/BlazorWasmPreRendering.Build.props b/BlazorWasmPreRendering.Build/build/BlazorWasmPreRendering.Build.props
index 398af77..1f12eec 100644
--- a/BlazorWasmPreRendering.Build/build/BlazorWasmPreRendering.Build.props
+++ b/BlazorWasmPreRendering.Build/build/BlazorWasmPreRendering.Build.props
@@ -2,5 +2,6 @@
   <Import Project="Microsoft.AspNetCore.StaticWebAssets.props" />
   <PropertyGroup>
     <BeforePublishSPAforGHPages>$(BeforePublishSPAforGHPages);BlazorWasmPrerendering</BeforePublishSPAforGHPages>
+    <BeforeBlazorWasmBrotliLoader>$(BeforeBlazorWasmBrotliLoader);BlazorWasmPrerendering</BeforeBlazorWasmBrotliLoader>
   </PropertyGroup>
 </Project>
diff --git a/RELEASE-NOTES.txt b/RELEASE-NOTES.txt
index e318198..adb6270 100644
--- a/RELEASE-NOTES.txt
+++ b/RELEASE-NOTES.txt
@@ -1,3 +1,6 @@
+v.4.0.1
+- Improve: Make it work correctly even when used with �gBlazorWasmBrotliLoader.Build�h NuGet package.
+
 v.4.0.0
 - This is the first official - not a preview - release.
 - Breaking Change: Drop the support for .NET 5.
diff --git a/SampleApps/BlazorWasmAVP/BlazorWasmAVP.csproj b/SampleApps/BlazorWasmAVP/BlazorWasmAVP.csproj
index ce1146d..03ab3d2 100644
--- a/SampleApps/BlazorWasmAVP/BlazorWasmAVP.csproj
+++ b/SampleApps/BlazorWasmAVP/BlazorWasmAVP.csproj
@@ -18,7 +18,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="7.0.18" />
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="7.0.18" PrivateAssets="all" />
     <PackageReference Include="BlazorWasmAntivirusProtection" Version="2.4.5" />
-    <PackageReference Include="BlazorWasmPreRendering.Build" Version="4.0.0" />
+    <PackageReference Include="BlazorWasmPreRendering.Build" Version="4.0.1-preview.1" />
   </ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/SampleApps/BlazorWasmApp0/BlazorWasmApp0.csproj b/SampleApps/BlazorWasmApp0/BlazorWasmApp0.csproj
index 45fd261..b32adcf 100644
--- a/SampleApps/BlazorWasmApp0/BlazorWasmApp0.csproj
+++ b/SampleApps/BlazorWasmApp0/BlazorWasmApp0.csproj
@@ -9,7 +9,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="BlazorWasmPreRendering.Build" Version="4.0.0" />
+    <PackageReference Include="BlazorWasmPreRendering.Build" Version="4.0.1-preview.1" />
+    <PackageReference Include="BlazorWasmBrotliLoader.Build" Version="1.0.0-preview.1" />
     <PackageReference Include="PublishSPAforGitHubPages.Build" Version="2.1.1" />
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="8.0.4" />
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="8.0.4" PrivateAssets="all" />
diff --git a/SampleApps/BlazorWasmApp1/BlazorWasmApp1.csproj b/SampleApps/BlazorWasmApp1/BlazorWasmApp1.csproj
index eca9801..5d2dc07 100644
--- a/SampleApps/BlazorWasmApp1/BlazorWasmApp1.csproj
+++ b/SampleApps/BlazorWasmApp1/BlazorWasmApp1.csproj
@@ -13,8 +13,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="BlazorWasmPreRendering.Build" Version="4.0.0" />
-    <PackageReference Include="PublishSPAforGitHubPages.Build" Version="2.1.1" />
+    <PackageReference Include="BlazorWasmPreRendering.Build" Version="4.0.1-preview.1" />
+    <PackageReference Include="PublishSPAforGitHubPages.Build" Version="3.0.0-preview.1" />
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="8.0.4" />
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="8.0.4" PrivateAssets="all" />
     <PackageReference Include="Toolbelt.Blazor.HeadElement" Version="7.3.1" />
diff --git a/SampleApps/BlazorWasmApp2/Client/BlazorWasmApp2.Client.csproj b/SampleApps/BlazorWasmApp2/Client/BlazorWasmApp2.Client.csproj
index dccead9..790dafc 100644
--- a/SampleApps/BlazorWasmApp2/Client/BlazorWasmApp2.Client.csproj
+++ b/SampleApps/BlazorWasmApp2/Client/BlazorWasmApp2.Client.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
+<Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
 
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
diff --git a/SampleApps/SAMPLE-APPS-README.md b/SampleApps/SAMPLE-APPS-README.md
index c55fa6d..2f58c4c 100644
--- a/SampleApps/SAMPLE-APPS-README.md
+++ b/SampleApps/SAMPLE-APPS-README.md
@@ -10,6 +10,7 @@
 |PWA                | ✅ Yes       | -                | -
 |Has easter-egg     | -            | ✅ Yes           | -
 |Deploy to GitHub Pages| -         | ✅ Yes           | -
+|Brotli Loader      | ✅ Yes       | -                | -
 |Has AngleSharp dependency| ✅Yes  | -                | -
 |Localization       | ✅ Yes       | -                | -
 |Lazy Load Assembly | ✅ Yes       | ✅ Yes           | -
diff --git a/VersionInfo.props b/VersionInfo.props
index a5b8a30..5f6bd64 100644
--- a/VersionInfo.props
+++ b/VersionInfo.props
@@ -1,6 +1,6 @@
 <Project>
   <PropertyGroup>
-    <Version>4.0.0</Version>
+    <Version>4.0.1-preview.1</Version>
     <Authors>J.Sakamoto</Authors>
     <Copyright>Copyright © 2021-2024 J.Sakamoto, Mozilla Public License 2.0</Copyright>
     <Description>When you publish your Blazor Wasm app, this package pre-renders and saves the app as static HTML files in your public folder.</Description>