diff --git a/src/RhSolutions.csproj b/src/RhSolutions.csproj
index 8aa73cc..059d0cb 100644
--- a/src/RhSolutions.csproj
+++ b/src/RhSolutions.csproj
@@ -18,9 +18,6 @@
     <Reference Include="System.ServiceProcess" />
     <Reference Include="System.Transactions" />
   </ItemGroup>
-  <ItemGroup>
-    <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
-  </ItemGroup>
   <ItemGroup>
     <PackageReference Include="ExcelDna.AddIn" Version="1.6.0" />
     <PackageReference Include="ExcelDna.IntelliSense" Version="1.6.0" />