2 files changed, 3 insertions, 3 deletions

diff --git a/src/ext/DifxApp/test/WixToolsetTest.DifxApp/DifxAppExtensionFixture.cs b/src/ext/DifxApp/test/WixToolsetTest.DifxApp/DifxAppExtensionFixture.cs
index d8f1c9ea..7bdd039b 100644
--- a/src/ext/DifxApp/test/WixToolsetTest.DifxApp/DifxAppExtensionFixture.cs
+++ b/src/ext/DifxApp/test/WixToolsetTest.DifxApp/DifxAppExtensionFixture.cs
@@ -3,8 +3,8 @@
 namespace WixToolsetTest.DifxApp
 {
     using System.Linq;
-    using WixBuildTools.TestSupport;
-    using WixToolset.Core.TestPackage;
+    using WixInternal.TestSupport;
+    using WixInternal.Core.TestPackage;
     using WixToolset.DifxApp;
     using Xunit;
 
diff --git a/src/ext/DifxApp/test/WixToolsetTest.DifxApp/WixToolsetTest.DifxApp.csproj b/src/ext/DifxApp/test/WixToolsetTest.DifxApp/WixToolsetTest.DifxApp.csproj
index 47329768..d7176efa 100644
--- a/src/ext/DifxApp/test/WixToolsetTest.DifxApp/WixToolsetTest.DifxApp.csproj
+++ b/src/ext/DifxApp/test/WixToolsetTest.DifxApp/WixToolsetTest.DifxApp.csproj
@@ -19,6 +19,6 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="WixToolset.Core.TestPackage" />
+    <PackageReference Include="WixInternal.Core.TestPackage" />
   </ItemGroup>
 </Project>