diff --git a/src/Components/WebAssembly/Build/src/targets/Blazor.MonoRuntime.targets b/src/Components/WebAssembly/Build/src/targets/Blazor.MonoRuntime.targets
index ab219caa61..644711caea 100644
--- a/src/Components/WebAssembly/Build/src/targets/Blazor.MonoRuntime.targets
+++ b/src/Components/WebAssembly/Build/src/targets/Blazor.MonoRuntime.targets
@@ -121,34 +121,14 @@
       </_BlazorOutputWithTargetPath>
     </ItemGroup>
 
-    <!--
-      TODO: Instead of dynamically switching the TargetOutputPath for dotnet.js here, actually
-      change the physical filename inside the M.A.C.W.Runtime package so it includes the package's
-      version (e.g., dotnet.3.2.0-preview3.12345.js). Then we can eliminate the following property
-      and recombine the two item groups _DotNetWasmRuntimeFile and _DotNetWasmJsFile below, simply putting all of
-      $(ComponentsWebAssemblyRuntimePath)* into _BlazorOutputWithTargetPath using their physical names.
-
-      The actual value 3.2.0-preview2 is hardcoded here until we update M.A.C.W.Runtime to do this.
-    -->
-    <PropertyGroup>
-      <TemporaryDotNetJsFileVersion>3.2.0-preview2</TemporaryDotNetJsFileVersion>
-    </PropertyGroup>
-
     <ItemGroup>
-      <_DotNetWasmRuntimeFile Include="$(ComponentsWebAssemblyRuntimePath)*.wasm" />
+      <_DotNetWasmRuntimeFile Include="$(ComponentsWebAssemblyRuntimePath)*" />
       <_BlazorOutputWithTargetPath Include="@(_DotNetWasmRuntimeFile)">
         <TargetOutputPath>$(_BlazorRuntimeWasmOutputPath)%(FileName)%(Extension)</TargetOutputPath>
         <BootManifestResourceType>runtime</BootManifestResourceType>
         <BootManifestResourceName>%(FileName)%(Extension)</BootManifestResourceName>
       </_BlazorOutputWithTargetPath>
 
-      <_DotNetWasmJsFile Include="$(ComponentsWebAssemblyRuntimePath)*.js" />
-      <_BlazorOutputWithTargetPath Include="@(_DotNetWasmJsFile)">
-        <TargetOutputPath>$(_BlazorRuntimeWasmOutputPath)%(FileName).$(TemporaryDotNetJsFileVersion)%(Extension)</TargetOutputPath>
-        <BootManifestResourceType>runtime</BootManifestResourceType>
-        <BootManifestResourceName>%(FileName).$(TemporaryDotNetJsFileVersion)%(Extension)</BootManifestResourceName>
-      </_BlazorOutputWithTargetPath>
-
       <_BlazorJSFile Include="$(_BlazorJSPath)" />
       <_BlazorJSFile Include="$(_BlazorJSMapPath)" Condition="Exists('$(_BlazorJSMapPath)')" />
       <_BlazorOutputWithTargetPath Include="@(_BlazorJSFile)">
diff --git a/src/Components/WebAssembly/Build/test/BuildIntegrationTests/BuildIntegrationTest.cs b/src/Components/WebAssembly/Build/test/BuildIntegrationTests/BuildIntegrationTest.cs
index 30eefd3458..0f87f1e63c 100644
--- a/src/Components/WebAssembly/Build/test/BuildIntegrationTests/BuildIntegrationTest.cs
+++ b/src/Components/WebAssembly/Build/test/BuildIntegrationTests/BuildIntegrationTest.cs
@@ -4,6 +4,7 @@
 using System.IO;
 using System.Threading.Tasks;
 using Xunit;
+using static Microsoft.AspNetCore.Components.WebAssembly.Build.WebAssemblyRuntimePackage;
 
 namespace Microsoft.AspNetCore.Components.WebAssembly.Build
 {
@@ -23,7 +24,7 @@ namespace Microsoft.AspNetCore.Components.WebAssembly.Build
             Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "blazor.boot.json");
             Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "blazor.webassembly.js");
             Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "wasm", "dotnet.wasm");
-            Assert.FileCountEquals(result, 1, Path.Combine(buildOutputDirectory, "wwwroot", "_framework", "wasm"), "dotnet.*.js");
+            Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "wasm", DotNetJsFileName);
             Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "_bin", "standalone.dll");
             Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "_bin", "Microsoft.Extensions.Logging.Abstractions.dll"); // Verify dependencies are part of the output.
 
@@ -71,7 +72,7 @@ namespace Microsoft.AspNetCore.Components.WebAssembly.Build
             Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "blazor.boot.json");
             Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "blazor.webassembly.js");
             Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "wasm", "dotnet.wasm");
-            Assert.FileCountEquals(result, 1, Path.Combine(buildOutputDirectory, "wwwroot", "_framework", "wasm"), "dotnet.*.js");
+            Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "wasm", DotNetJsFileName);
             Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "_bin", "standalone.dll");
             Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "_bin", "Microsoft.Extensions.Logging.Abstractions.dll"); // Verify dependencies are part of the output.
         }
diff --git a/src/Components/WebAssembly/Build/test/BuildIntegrationTests/PublishIntegrationTest.cs b/src/Components/WebAssembly/Build/test/BuildIntegrationTests/PublishIntegrationTest.cs
index b81ac7ada2..32eaa82167 100644
--- a/src/Components/WebAssembly/Build/test/BuildIntegrationTests/PublishIntegrationTest.cs
+++ b/src/Components/WebAssembly/Build/test/BuildIntegrationTests/PublishIntegrationTest.cs
@@ -4,6 +4,7 @@
 using System.IO;
 using System.Threading.Tasks;
 using Xunit;
+using static Microsoft.AspNetCore.Components.WebAssembly.Build.WebAssemblyRuntimePackage;
 
 namespace Microsoft.AspNetCore.Components.WebAssembly.Build
 {
@@ -24,7 +25,7 @@ namespace Microsoft.AspNetCore.Components.WebAssembly.Build
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "blazor.boot.json");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "blazor.webassembly.js");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "wasm", "dotnet.wasm");
-            Assert.FileCountEquals(result, 1, Path.Combine(blazorPublishDirectory, "_framework", "wasm"), "dotnet.*.js");
+            Assert.FileExists(result, blazorPublishDirectory, "_framework", "wasm", DotNetJsFileName);
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "_bin", "standalone.dll");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "_bin", "Microsoft.Extensions.Logging.Abstractions.dll"); // Verify dependencies are part of the output.
 
@@ -64,7 +65,7 @@ namespace Microsoft.AspNetCore.Components.WebAssembly.Build
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "blazor.boot.json");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "blazor.webassembly.js");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "wasm", "dotnet.wasm");
-            Assert.FileCountEquals(result, 1, Path.Combine(blazorPublishDirectory, "_framework", "wasm"), "dotnet.*.js");
+            Assert.FileExists(result, blazorPublishDirectory, "_framework", "wasm", DotNetJsFileName);
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "_bin", "standalone.dll");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "_bin", "Microsoft.Extensions.Logging.Abstractions.dll"); // Verify dependencies are part of the output.
 
@@ -102,7 +103,7 @@ namespace Microsoft.AspNetCore.Components.WebAssembly.Build
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "blazor.boot.json");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "blazor.webassembly.js");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "wasm", "dotnet.wasm");
-            Assert.FileCountEquals(result, 1, Path.Combine(blazorPublishDirectory, "_framework", "wasm"), "dotnet.*.js");
+            Assert.FileExists(result, blazorPublishDirectory, "_framework", "wasm", DotNetJsFileName);
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "_bin", "standalone.dll");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "_bin", "Microsoft.Extensions.Logging.Abstractions.dll"); // Verify dependencies are part of the output.
 
@@ -164,7 +165,7 @@ namespace Microsoft.AspNetCore.Components.WebAssembly.Build
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "blazor.boot.json");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "blazor.webassembly.js");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "wasm", "dotnet.wasm");
-            Assert.FileCountEquals(result, 1, Path.Combine(blazorPublishDirectory, "_framework", "wasm"), "dotnet.*.js");
+            Assert.FileExists(result, blazorPublishDirectory, "_framework", "wasm", DotNetJsFileName);
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "_bin", "standalone.dll");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "_bin", "Microsoft.Extensions.Logging.Abstractions.dll"); // Verify dependencies are part of the output.
 
@@ -208,7 +209,7 @@ namespace Microsoft.AspNetCore.Components.WebAssembly.Build
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "blazor.boot.json");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "blazor.webassembly.js");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "wasm", "dotnet.wasm");
-            Assert.FileCountEquals(result, 1, Path.Combine(blazorPublishDirectory, "_framework", "wasm"), "dotnet.*.js");
+            Assert.FileExists(result, blazorPublishDirectory, "_framework", "wasm", DotNetJsFileName);
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "_bin", "standalone.dll");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "_bin", "Microsoft.Extensions.Logging.Abstractions.dll"); // Verify dependencies are part of the output.
 
@@ -254,7 +255,7 @@ namespace Microsoft.AspNetCore.Components.WebAssembly.Build
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "blazor.boot.json");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "blazor.webassembly.js");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "wasm", "dotnet.wasm");
-            Assert.FileCountEquals(result, 1, Path.Combine(blazorPublishDirectory, "_framework", "wasm"), "dotnet.*.js");
+            Assert.FileExists(result, blazorPublishDirectory, "_framework", "wasm", DotNetJsFileName);
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "_bin", "standalone.dll");
             Assert.FileExists(result, blazorPublishDirectory, "_framework", "_bin", "Microsoft.Extensions.Logging.Abstractions.dll"); // Verify dependencies are part of the output.
 
diff --git a/src/Components/WebAssembly/Build/test/BuildIntegrationTests/WebAssemblyRuntimePackage.cs b/src/Components/WebAssembly/Build/test/BuildIntegrationTests/WebAssemblyRuntimePackage.cs
new file mode 100644
index 0000000000..d95ba1e41c
--- /dev/null
+++ b/src/Components/WebAssembly/Build/test/BuildIntegrationTests/WebAssemblyRuntimePackage.cs
@@ -0,0 +1,27 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+using System.Linq;
+using System.Reflection;
+
+namespace Microsoft.AspNetCore.Components.WebAssembly.Build
+{
+    internal static class WebAssemblyRuntimePackage
+    {
+        public static readonly string ComponentsWebAssemblyRuntimePackageVersion;
+        public static readonly string DotNetJsFileName;
+
+        static WebAssemblyRuntimePackage()
+        {
+            ComponentsWebAssemblyRuntimePackageVersion = typeof(WebAssemblyRuntimePackage)
+                .Assembly
+                .GetCustomAttributes<AssemblyMetadataAttribute>()
+                .FirstOrDefault(f => f.Key == "Testing.MicrosoftAspNetCoreComponentsWebAssemblyRuntimePackageVersion")
+                ?.Value
+                ?? throw new InvalidOperationException("Testing.MicrosoftAspNetCoreComponentsWebAssemblyRuntimePackageVersion was not found");
+
+            DotNetJsFileName = $"dotnet.{ComponentsWebAssemblyRuntimePackageVersion}.js";
+        }
+    }
+}
diff --git a/src/Components/WebAssembly/Build/test/Microsoft.AspNetCore.Components.WebAssembly.Build.Tests.csproj b/src/Components/WebAssembly/Build/test/Microsoft.AspNetCore.Components.WebAssembly.Build.Tests.csproj
index 00ebfae26e..035bc4ad6c 100644
--- a/src/Components/WebAssembly/Build/test/Microsoft.AspNetCore.Components.WebAssembly.Build.Tests.csproj
+++ b/src/Components/WebAssembly/Build/test/Microsoft.AspNetCore.Components.WebAssembly.Build.Tests.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>$(DefaultNetCoreTargetFramework)</TargetFramework>
@@ -39,6 +39,11 @@
       <_Parameter1>Testing.RepoRoot</_Parameter1>
       <_Parameter2>$(RepoRoot)</_Parameter2>
     </AssemblyAttribute>
+
+    <AssemblyAttribute Include="System.Reflection.AssemblyMetadataAttribute">
+      <_Parameter1>Testing.MicrosoftAspNetCoreComponentsWebAssemblyRuntimePackageVersion</_Parameter1>
+      <_Parameter2>$(MicrosoftAspNetCoreComponentsWebAssemblyRuntimePackageVersion)</_Parameter2>
+    </AssemblyAttribute>
   </ItemGroup>
 
   <Target Name="RestoreTestAssets" AfterTargets="Restore;Build" Condition="'$(DotNetBuildFromSource)' != 'true'">