diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 19ea927682..18f615822c 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -9,9 +9,9 @@
 -->
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.AspNetCore.Blazor.Mono" Version="0.10.0-preview6.19273.10">
+    <Dependency Name="Microsoft.AspNetCore.Blazor.Mono" Version="0.10.0-preview6.19303.4">
       <Uri>https://github.com/aspnet/Blazor</Uri>
-      <Sha>ff7b7c94be74f39d99043a3f5374960d78b76813</Sha>
+      <Sha>be5e4eea2dc7da9852a560703bce381295718905</Sha>
     </Dependency>
     <Dependency Name="Microsoft.AspNetCore.Razor.Language" Version="3.0.0-preview6.19303.6">
       <Uri>https://github.com/aspnet/AspNetCore-Tooling</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index 57537daaef..ed756b50a5 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -49,7 +49,7 @@
     <!-- Only listed explicitly to workaround https://github.com/dotnet/cli/issues/10528 -->
     <MicrosoftNETCorePlatformsPackageVersion>3.0.0-preview6.19279.8</MicrosoftNETCorePlatformsPackageVersion>
     <!-- Packages from aspnet/Blazor -->
-    <MicrosoftAspNetCoreBlazorMonoPackageVersion>0.10.0-preview6.19273.10</MicrosoftAspNetCoreBlazorMonoPackageVersion>
+    <MicrosoftAspNetCoreBlazorMonoPackageVersion>0.10.0-preview6.19303.4</MicrosoftAspNetCoreBlazorMonoPackageVersion>
     <!-- Packages from aspnet/Extensions -->
     <InternalAspNetCoreAnalyzersPackageVersion>3.0.0-preview6.19303.2</InternalAspNetCoreAnalyzersPackageVersion>
     <MicrosoftAspNetCoreAnalyzerTestingPackageVersion>3.0.0-preview6.19303.2</MicrosoftAspNetCoreAnalyzerTestingPackageVersion>