diff --git a/src/Microsoft.AspNetCore.Mvc.Razor.Extensions/Internal/ClassName.cs b/src/Microsoft.AspNetCore.Mvc.Razor.Extensions/Internal/ClassName.cs
index 2dbbd06105..509ef56253 100644
--- a/src/Microsoft.AspNetCore.Mvc.Razor.Extensions/Internal/ClassName.cs
+++ b/src/Microsoft.AspNetCore.Mvc.Razor.Extensions/Internal/ClassName.cs
@@ -2,7 +2,7 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System.Globalization;
-using Microsoft.Extensions.Primitives;
+using System.Text;
 
 namespace Microsoft.AspNetCore.Mvc.Razor.Extensions.Internal
 {
@@ -50,7 +50,7 @@ namespace Microsoft.AspNetCore.Mvc.Razor.Extensions.Internal
                 inputName = "_" + inputName;
             }
 
-            var builder = new InplaceStringBuilder(inputName.Length);
+            var builder = new StringBuilder(inputName.Length);
             for (var i = 0; i < inputName.Length; i++)
             {
                 var ch = inputName[i];
diff --git a/src/Microsoft.AspNetCore.Mvc.Razor.Extensions/Microsoft.AspNetCore.Mvc.Razor.Extensions.csproj b/src/Microsoft.AspNetCore.Mvc.Razor.Extensions/Microsoft.AspNetCore.Mvc.Razor.Extensions.csproj
index a6fc307de7..116c4c4e90 100644
--- a/src/Microsoft.AspNetCore.Mvc.Razor.Extensions/Microsoft.AspNetCore.Mvc.Razor.Extensions.csproj
+++ b/src/Microsoft.AspNetCore.Mvc.Razor.Extensions/Microsoft.AspNetCore.Mvc.Razor.Extensions.csproj
@@ -12,9 +12,6 @@
 
   <ItemGroup>
     <ProjectReference Include="../Microsoft.AspNetCore.Razor.Evolution/Microsoft.AspNetCore.Razor.Evolution.csproj" />
-
-    <PackageReference Include="Microsoft.Extensions.Primitives" Version="$(AspNetCoreVersion)" />
-    <PackageReference Include="Microsoft.Extensions.FileProviders.Abstractions" Version="$(AspNetCoreVersion)" />
   </ItemGroup>
 
 </Project>