diff --git a/sources/Test/OpenMcdf.MemTest/OpenMcdf.MemTest.csproj b/sources/Test/OpenMcdf.MemTest/OpenMcdf.MemTest.csproj
index 8ba42ba1..c6e34c64 100644
--- a/sources/Test/OpenMcdf.MemTest/OpenMcdf.MemTest.csproj
+++ b/sources/Test/OpenMcdf.MemTest/OpenMcdf.MemTest.csproj
@@ -23,12 +23,6 @@
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
     <Deterministic>False</Deterministic>
   </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="OpenMcdf, Version=2.3.0.0, Culture=neutral, PublicKeyToken=fdbb1629d7c00800, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\bin\Debug\OpenMcdf\net40\OpenMcdf.dll</HintPath>
-    </Reference>
-  </ItemGroup>
   <ItemGroup>
     <BootstrapperPackage Include="Microsoft.Net.Client.3.5">
       <Visible>False</Visible>
@@ -46,4 +40,7 @@
       <Install>true</Install>
     </BootstrapperPackage>
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\OpenMcdf\OpenMcdf.csproj" />
+  </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/sources/Test/OpenMcdf.PerfTest/OpenMcdf.PerfTest.csproj b/sources/Test/OpenMcdf.PerfTest/OpenMcdf.PerfTest.csproj
index 4834473d..a81316f4 100644
--- a/sources/Test/OpenMcdf.PerfTest/OpenMcdf.PerfTest.csproj
+++ b/sources/Test/OpenMcdf.PerfTest/OpenMcdf.PerfTest.csproj
@@ -20,11 +20,6 @@
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
   </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="OpenMcdf">
-      <HintPath>..\..\..\bin\Debug\OpenMcdf\net40\OpenMcdf.dll</HintPath>
-    </Reference>
-  </ItemGroup>
   <ItemGroup>
     <BootstrapperPackage Include="Microsoft.Net.Client.3.5">
       <Visible>False</Visible>
@@ -42,4 +37,7 @@
       <Install>true</Install>
     </BootstrapperPackage>
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\OpenMcdf\OpenMcdf.csproj" />
+  </ItemGroup>
 </Project>
\ No newline at end of file