diff --git a/src/Components/Blazor/Templates/src/content/BlazorHosted-CSharp/BlazorHosted-CSharp.Client/BlazorHosted-CSharp.Client.csproj b/src/Components/Blazor/Templates/src/content/BlazorHosted-CSharp/BlazorHosted-CSharp.Client/BlazorHosted-CSharp.Client.csproj
index e213d7de3d..11d1b18664 100644
--- a/src/Components/Blazor/Templates/src/content/BlazorHosted-CSharp/BlazorHosted-CSharp.Client/BlazorHosted-CSharp.Client.csproj
+++ b/src/Components/Blazor/Templates/src/content/BlazorHosted-CSharp/BlazorHosted-CSharp.Client/BlazorHosted-CSharp.Client.csproj
@@ -8,6 +8,7 @@
       https://dotnet.myget.org/F/blazor-dev/api/v3/index.json;
     </RestoreAdditionalProjectSources>
     <LangVersion>7.3</LangVersion>
+    <RazorLangVersion>3.0</RazorLangVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Components/Blazor/Templates/src/content/BlazorLibrary-CSharp/BlazorLibrary-CSharp.csproj b/src/Components/Blazor/Templates/src/content/BlazorLibrary-CSharp/BlazorLibrary-CSharp.csproj
index 0abee02072..c4d1d204eb 100644
--- a/src/Components/Blazor/Templates/src/content/BlazorLibrary-CSharp/BlazorLibrary-CSharp.csproj
+++ b/src/Components/Blazor/Templates/src/content/BlazorLibrary-CSharp/BlazorLibrary-CSharp.csproj
@@ -8,6 +8,7 @@
       https://dotnet.myget.org/F/blazor-dev/api/v3/index.json;
     </RestoreAdditionalProjectSources>
     <LangVersion>7.3</LangVersion>
+    <RazorLangVersion>3.0</RazorLangVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Components/Blazor/Templates/src/content/BlazorStandalone-CSharp/BlazorStandalone-CSharp.csproj b/src/Components/Blazor/Templates/src/content/BlazorStandalone-CSharp/BlazorStandalone-CSharp.csproj
index 8c8690af82..548c55c785 100644
--- a/src/Components/Blazor/Templates/src/content/BlazorStandalone-CSharp/BlazorStandalone-CSharp.csproj
+++ b/src/Components/Blazor/Templates/src/content/BlazorStandalone-CSharp/BlazorStandalone-CSharp.csproj
@@ -7,6 +7,7 @@
       https://dotnet.myget.org/F/blazor-dev/api/v3/index.json;
     </RestoreAdditionalProjectSources>
     <LangVersion>7.3</LangVersion>
+    <RazorLangVersion>3.0</RazorLangVersion>
   </PropertyGroup>
 
   <ItemGroup>