diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index dc483752d9..1e7f2fa1cf 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -9,25 +9,25 @@
 -->
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.AspNetCore.Blazor.Mono" Version="3.0.0-preview9.19379.2">
+    <Dependency Name="Microsoft.AspNetCore.Blazor.Mono" Version="5.0.0-alpha1.19403.2">
       <Uri>https://github.com/aspnet/Blazor</Uri>
-      <Sha>cd9254a05cfa52defeacd31697d25b2a4ed17510</Sha>
+      <Sha>dd092c2236cf9375b50e19295dd2faf36e6221f6</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.AspNetCore.Razor.Language" Version="3.0.0-preview9.19402.1">
+    <Dependency Name="Microsoft.AspNetCore.Razor.Language" Version="5.0.0-alpha1.19381.2">
       <Uri>https://github.com/aspnet/AspNetCore-Tooling</Uri>
-      <Sha>f039aa935462163dead64ca2d6f9c6d27f4e290b</Sha>
+      <Sha>65994cb6ffd2d8da87db74e2b3e34cb5e350aff0</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.AspNetCore.Mvc.Razor.Extensions" Version="3.0.0-preview9.19402.1">
+    <Dependency Name="Microsoft.AspNetCore.Mvc.Razor.Extensions" Version="5.0.0-alpha1.19381.2">
       <Uri>https://github.com/aspnet/AspNetCore-Tooling</Uri>
-      <Sha>f039aa935462163dead64ca2d6f9c6d27f4e290b</Sha>
+      <Sha>65994cb6ffd2d8da87db74e2b3e34cb5e350aff0</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.CodeAnalysis.Razor" Version="3.0.0-preview9.19402.1">
+    <Dependency Name="Microsoft.CodeAnalysis.Razor" Version="5.0.0-alpha1.19381.2">
       <Uri>https://github.com/aspnet/AspNetCore-Tooling</Uri>
-      <Sha>f039aa935462163dead64ca2d6f9c6d27f4e290b</Sha>
+      <Sha>65994cb6ffd2d8da87db74e2b3e34cb5e350aff0</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NET.Sdk.Razor" Version="3.0.0-preview9.19402.1">
+    <Dependency Name="Microsoft.NET.Sdk.Razor" Version="5.0.0-alpha1.19381.2">
       <Uri>https://github.com/aspnet/AspNetCore-Tooling</Uri>
-      <Sha>f039aa935462163dead64ca2d6f9c6d27f4e290b</Sha>
+      <Sha>65994cb6ffd2d8da87db74e2b3e34cb5e350aff0</Sha>
     </Dependency>
     <Dependency Name="dotnet-ef" Version="3.0.0-preview9.19402.9">
       <Uri>https://github.com/aspnet/EntityFrameworkCore</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index 8e33360df5..4f48ab6d95 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -90,7 +90,7 @@
     <!-- Only listed explicitly to workaround https://github.com/dotnet/cli/issues/10528 -->
     <MicrosoftNETCorePlatformsPackageVersion>3.0.0-preview8.19378.8</MicrosoftNETCorePlatformsPackageVersion>
     <!-- Packages from aspnet/Blazor -->
-    <MicrosoftAspNetCoreBlazorMonoPackageVersion>3.0.0-preview9.19379.2</MicrosoftAspNetCoreBlazorMonoPackageVersion>
+    <MicrosoftAspNetCoreBlazorMonoPackageVersion>5.0.0-alpha1.19403.2</MicrosoftAspNetCoreBlazorMonoPackageVersion>
     <!-- Packages from aspnet/Extensions -->
     <InternalAspNetCoreAnalyzersPackageVersion>3.0.0-preview9.19401.2</InternalAspNetCoreAnalyzersPackageVersion>
     <MicrosoftAspNetCoreAnalyzerTestingPackageVersion>3.0.0-preview9.19401.2</MicrosoftAspNetCoreAnalyzerTestingPackageVersion>
@@ -162,10 +162,10 @@
     <MicrosoftEntityFrameworkCoreToolsPackageVersion>3.0.0-preview9.19402.9</MicrosoftEntityFrameworkCoreToolsPackageVersion>
     <MicrosoftEntityFrameworkCorePackageVersion>3.0.0-preview9.19402.9</MicrosoftEntityFrameworkCorePackageVersion>
     <!-- Packages from aspnet/AspNetCore-Tooling -->
-    <MicrosoftAspNetCoreMvcRazorExtensionsPackageVersion>3.0.0-preview9.19402.1</MicrosoftAspNetCoreMvcRazorExtensionsPackageVersion>
-    <MicrosoftAspNetCoreRazorLanguagePackageVersion>3.0.0-preview9.19402.1</MicrosoftAspNetCoreRazorLanguagePackageVersion>
-    <MicrosoftCodeAnalysisRazorPackageVersion>3.0.0-preview9.19402.1</MicrosoftCodeAnalysisRazorPackageVersion>
-    <MicrosoftNETSdkRazorPackageVersion>3.0.0-preview9.19402.1</MicrosoftNETSdkRazorPackageVersion>
+    <MicrosoftAspNetCoreMvcRazorExtensionsPackageVersion>5.0.0-alpha1.19381.2</MicrosoftAspNetCoreMvcRazorExtensionsPackageVersion>
+    <MicrosoftAspNetCoreRazorLanguagePackageVersion>5.0.0-alpha1.19381.2</MicrosoftAspNetCoreRazorLanguagePackageVersion>
+    <MicrosoftCodeAnalysisRazorPackageVersion>5.0.0-alpha1.19381.2</MicrosoftCodeAnalysisRazorPackageVersion>
+    <MicrosoftNETSdkRazorPackageVersion>5.0.0-alpha1.19381.2</MicrosoftNETSdkRazorPackageVersion>
   </PropertyGroup>
   <!--