diff --git a/Demo01.TestDrivenDevelopment.Test/Demo01.TestDrivenDevelopment.Test.csproj b/Demo01.TestDrivenDevelopment.Test/Demo01.TestDrivenDevelopment.Test.csproj
index 486d637..5775fc4 100644
--- a/Demo01.TestDrivenDevelopment.Test/Demo01.TestDrivenDevelopment.Test.csproj
+++ b/Demo01.TestDrivenDevelopment.Test/Demo01.TestDrivenDevelopment.Test.csproj
@@ -17,7 +17,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
     <PackageReference Include="MSTest.TestFramework" Version="4.1.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="4.1.0" />
-    <PackageReference Include="coverlet.collector" Version="6.0.4" />
+    <PackageReference Include="coverlet.collector" Version="8.0.0" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Demo01.TestDrivenDevelopment\Demo01.TestDrivenDevelopment.csproj" />
diff --git a/Demo02.LayeredArchitecture.Application.Test/Demo02.LayeredArchitecture.Application.Test.csproj b/Demo02.LayeredArchitecture.Application.Test/Demo02.LayeredArchitecture.Application.Test.csproj
index 1a438b3..98a5f63 100644
--- a/Demo02.LayeredArchitecture.Application.Test/Demo02.LayeredArchitecture.Application.Test.csproj
+++ b/Demo02.LayeredArchitecture.Application.Test/Demo02.LayeredArchitecture.Application.Test.csproj
@@ -25,7 +25,7 @@
     <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="6.1.2" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
     <PackageReference Include="MSTest.TestAdapter" Version="4.1.0" />
-    <PackageReference Include="coverlet.collector" Version="6.0.4" />
+    <PackageReference Include="coverlet.collector" Version="8.0.0" />
   </ItemGroup>
   <Choose>
     <When Condition="'$(VisualStudioVersion)' == '10.0' And '$(IsCodedUITest)' == 'True'">
diff --git a/Demo02.LayeredArchitecture.Domain.Test/Demo02.LayeredArchitecture.Domain.Test.csproj b/Demo02.LayeredArchitecture.Domain.Test/Demo02.LayeredArchitecture.Domain.Test.csproj
index 433fc8d..0437658 100644
--- a/Demo02.LayeredArchitecture.Domain.Test/Demo02.LayeredArchitecture.Domain.Test.csproj
+++ b/Demo02.LayeredArchitecture.Domain.Test/Demo02.LayeredArchitecture.Domain.Test.csproj
@@ -17,7 +17,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
     <PackageReference Include="MSTest.TestFramework" Version="4.1.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="4.1.0" />
-    <PackageReference Include="coverlet.collector" Version="6.0.4" />
+    <PackageReference Include="coverlet.collector" Version="8.0.0" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Demo02.LayeredArchitecture.Domain\Demo02.LayeredArchitecture.Domain.csproj" />