diff --git a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Client/BlazorHosted.CSharp.Client.csproj b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Client/BlazorHosted.CSharp.Client.csproj
index bd5695af63..457ad4a84f 100644
--- a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Client/BlazorHosted.CSharp.Client.csproj
+++ b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Client/BlazorHosted.CSharp.Client.csproj
@@ -5,8 +5,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Blazor.Browser" Version="0.0.5-preview1-10041" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.AspNetCore.Blazor.Build" Version="0.0.5-preview1-10041" />
+    <PackageReference Include="Microsoft.AspNetCore.Blazor.Browser" Version="0.0.5-preview1-10054" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.AspNetCore.Blazor.Build" Version="0.0.5-preview1-10054" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Client/Pages/FetchData.cshtml b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Client/Pages/FetchData.cshtml
index 97ec765bbd..86eecd2911 100644
--- a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Client/Pages/FetchData.cshtml
+++ b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Client/Pages/FetchData.cshtml
@@ -39,7 +39,6 @@ else
 
     protected override async Task OnInitAsync()
     {
-        var json = await Http.GetStringAsync("/api/SampleData/WeatherForecasts");
-        forecasts = JsonUtil.Deserialize<WeatherForecast[]>(json);
+        forecasts = await Http.GetJsonAsync<WeatherForecast[]>("/api/SampleData/WeatherForecasts");
     }
 }
diff --git a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Server/BlazorHosted.CSharp.Server.csproj b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Server/BlazorHosted.CSharp.Server.csproj
index c1da152e77..fa7ae4606d 100644
--- a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Server/BlazorHosted.CSharp.Server.csproj
+++ b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Server/BlazorHosted.CSharp.Server.csproj
@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.0" />
-    <PackageReference Include="Microsoft.AspNetCore.Blazor.Server" Version="0.0.5-preview1-10041" />
+    <PackageReference Include="Microsoft.AspNetCore.Blazor.Server" Version="0.0.5-preview1-10054" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorStandalone.CSharp/BlazorStandalone.CSharp.csproj b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorStandalone.CSharp/BlazorStandalone.CSharp.csproj
index 66c64a07fd..60f54e0a36 100644
--- a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorStandalone.CSharp/BlazorStandalone.CSharp.csproj
+++ b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorStandalone.CSharp/BlazorStandalone.CSharp.csproj
@@ -7,9 +7,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Blazor.Browser" Version="0.0.5-preview1-10041" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.AspNetCore.Blazor.Build" Version="0.0.5-preview1-10041" />
-    <DotNetCliToolReference Include="Microsoft.AspNetCore.Blazor.Cli" Version="0.0.5-preview1-10041" />
+    <PackageReference Include="Microsoft.AspNetCore.Blazor.Browser" Version="0.0.5-preview1-10054" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.AspNetCore.Blazor.Build" Version="0.0.5-preview1-10054" />
+    <DotNetCliToolReference Include="Microsoft.AspNetCore.Blazor.Cli" Version="0.0.5-preview1-10054" />
   </ItemGroup>
 
 </Project>
diff --git a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorStandalone.CSharp/Pages/FetchData.cshtml b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorStandalone.CSharp/Pages/FetchData.cshtml
index bf9bd40e49..4c65fb0c2a 100644
--- a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorStandalone.CSharp/Pages/FetchData.cshtml
+++ b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorStandalone.CSharp/Pages/FetchData.cshtml
@@ -38,8 +38,7 @@ else
 
     protected override async Task OnInitAsync()
     {
-        var json = await Http.GetStringAsync("/sample-data/weather.json");
-        forecasts = JsonUtil.Deserialize<WeatherForecast[]>(json);
+        forecasts = await Http.GetJsonAsync<WeatherForecast[]>("/sample-data/weather.json");
     }
 
     class WeatherForecast