diff --git a/templates/app/aspnet-core/test/MyCompanyName.MyProjectName.TestBase/MyCompanyName.MyProjectName.TestBase.csproj b/templates/app/aspnet-core/test/MyCompanyName.MyProjectName.TestBase/MyCompanyName.MyProjectName.TestBase.csproj
index efdeb6718b..05c7539b52 100644
--- a/templates/app/aspnet-core/test/MyCompanyName.MyProjectName.TestBase/MyCompanyName.MyProjectName.TestBase.csproj
+++ b/templates/app/aspnet-core/test/MyCompanyName.MyProjectName.TestBase/MyCompanyName.MyProjectName.TestBase.csproj
@@ -17,6 +17,10 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
     <PackageReference Include="NSubstitute" Version="4.3.0" />
+    <PackageReference Include="NSubstitute.Analyzers.CSharp" Version="1.0.15">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Shouldly" Version="4.0.3" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.extensibility.execution" Version="2.4.1" />
diff --git a/templates/module/aspnet-core/test/MyCompanyName.MyProjectName.TestBase/MyCompanyName.MyProjectName.TestBase.csproj b/templates/module/aspnet-core/test/MyCompanyName.MyProjectName.TestBase/MyCompanyName.MyProjectName.TestBase.csproj
index 8c422a46e3..0ec8bf147b 100644
--- a/templates/module/aspnet-core/test/MyCompanyName.MyProjectName.TestBase/MyCompanyName.MyProjectName.TestBase.csproj
+++ b/templates/module/aspnet-core/test/MyCompanyName.MyProjectName.TestBase/MyCompanyName.MyProjectName.TestBase.csproj
@@ -10,6 +10,10 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
     <PackageReference Include="NSubstitute" Version="4.3.0" />
+    <PackageReference Include="NSubstitute.Analyzers.CSharp" Version="1.0.15">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Shouldly" Version="4.0.3" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.extensibility.execution" Version="2.4.1" />