diff --git a/src/LibLog.Example.Library/LibLog.Example.Library.csproj b/src/LibLog.Example.Library/LibLog.Example.Library.csproj
index f88b00f..d762d0d 100644
--- a/src/LibLog.Example.Library/LibLog.Example.Library.csproj
+++ b/src/LibLog.Example.Library/LibLog.Example.Library.csproj
@@ -14,5 +14,6 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
+    <PackageReference Include="Microsoft.CSharp" Version="4.5.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/LibLog.Example.ProvidersOnly/LibLog.Example.ProvidersOnly.csproj b/src/LibLog.Example.ProvidersOnly/LibLog.Example.ProvidersOnly.csproj
index 769b0c2..5a2a8de 100644
--- a/src/LibLog.Example.ProvidersOnly/LibLog.Example.ProvidersOnly.csproj
+++ b/src/LibLog.Example.ProvidersOnly/LibLog.Example.ProvidersOnly.csproj
@@ -14,5 +14,6 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
+    <PackageReference Include="Microsoft.CSharp" Version="4.5.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file