Index: src/Deltares.Soilbase/Deltares.Soilbase.csproj
===================================================================
diff -u -r45 -r63
--- src/Deltares.Soilbase/Deltares.Soilbase.csproj	(.../Deltares.Soilbase.csproj)	(revision 45)
+++ src/Deltares.Soilbase/Deltares.Soilbase.csproj	(.../Deltares.Soilbase.csproj)	(revision 63)
@@ -92,6 +92,10 @@
     <Reference Include="Deltares.Geotechnics">
       <HintPath>..\..\lib\Deltares\DslGeo\Deltares.Geotechnics.dll</HintPath>
     </Reference>
+    <Reference Include="Deltares.Geotechnics.IO, Version=16.1.0.0, Culture=neutral, processorArchitecture=x86">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\lib\Deltares\DslGeoIo\Deltares.Geotechnics.IO.dll</HintPath>
+    </Reference>
     <Reference Include="Deltares.Probabilistic">
       <HintPath>..\..\lib\Deltares\DslProbabilistic\Deltares.Probabilistic.dll</HintPath>
     </Reference>
@@ -141,12 +145,6 @@
     <None Include="packages.config" />
     <None Include="Properties\AssemblyInfo.cs.svn" />
   </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\Deltares.Geotechnics.IO\Deltares.Geotechnics.IO.csproj">
-      <Project>{d4f17481-154d-45ec-a179-b534369053b7}</Project>
-      <Name>Deltares.Geotechnics.IO</Name>
-    </ProjectReference>
-  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>
     <PostBuildEvent>