diff --git a/CommunityToolkit.Mvvm/CommunityToolkit.Mvvm.csproj b/CommunityToolkit.Mvvm/CommunityToolkit.Mvvm.csproj
index 2160f590..00746d59 100644
--- a/CommunityToolkit.Mvvm/CommunityToolkit.Mvvm.csproj
+++ b/CommunityToolkit.Mvvm/CommunityToolkit.Mvvm.csproj
@@ -43,10 +43,10 @@
   <!-- Reference the various multi-targeted versions of the source generator project (one per Roslyn version) -->
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
     <ProjectReference Include="..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj" ReferenceOutputAssembly="false">
-      <Properties>MvvmToolkitSourceGeneratorRoslynVersion=4.0.1;MvvmToolkitIsGeneratingNuGetPackage=true</Properties>
+      <AdditionalProperties>MvvmToolkitSourceGeneratorRoslynVersion=4.0.1;MvvmToolkitIsGeneratingNuGetPackage=true</AdditionalProperties>
     </ProjectReference>
     <ProjectReference Include="..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj" ReferenceOutputAssembly="false">
-      <Properties>MvvmToolkitSourceGeneratorRoslynVersion=4.3.0;MvvmToolkitIsGeneratingNuGetPackage=true</Properties>
+      <AdditionalProperties>MvvmToolkitSourceGeneratorRoslynVersion=4.3.0;MvvmToolkitIsGeneratingNuGetPackage=true</AdditionalProperties>
     </ProjectReference>
   </ItemGroup>
 
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 5210cebb..fd950a91 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -46,13 +46,13 @@ jobs:
   - script: dotnet test -c Release -f net6.0 -l "trx;LogFileName=VSTestResults_net6.0.trx"
     displayName: Run .NET 6 unit tests
 
-  # Run the .NET 6 MVVM Toolkit tests targeting Roslyn 4.0.1
-  - script: dotnet test tests\CommunityToolkit.Mvvm.UnitTests\CommunityToolkit.Mvvm.UnitTests.csproj -c Release -f net6.0 -p:MvvmToolkitSourceGeneratorRoslynVersion=4.0.1 -l "trx;LogFileName=VSTestResults_net6.0_mvvmtoolkit_roslyn401.trx"
-    displayName: Run CommunityToolkit.Mvvm.UnitTests unit tests with Roslyn 4.0.1
+  # Run the .NET 6 MVVM Toolkit tests targeting Roslyn 4.3.0
+  - script: dotnet test tests\CommunityToolkit.Mvvm.UnitTests\CommunityToolkit.Mvvm.UnitTests.csproj -c Release -f net6.0 -p:MvvmToolkitSourceGeneratorRoslynVersion=4.3.0 -l "trx;LogFileName=VSTestResults_net6.0_mvvmtoolkit_roslyn430.trx"
+    displayName: Run CommunityToolkit.Mvvm.UnitTests unit tests with Roslyn 4.3.0
 
-  # Run the .NET 6 MVVM Toolkit source generator tests targeting Roslyn 4.0.1
-  - script: dotnet test tests\CommunityToolkit.Mvvm.SourceGenerators.UnitTests\CommunityToolkit.Mvvm.SourceGenerators.UnitTests.csproj -c Release -f net6.0 -p:MvvmToolkitSourceGeneratorRoslynVersion=4.0.1 -l "trx;LogFileName=VSTestResults_net6.0_mvvmtoolkit_generators_roslyn401.trx"
-    displayName: Run CommunityToolkit.Mvvm.SourceGenerators.UnitTests unit tests with Roslyn 4.0.1
+  # Run the .NET 6 MVVM Toolkit source generator tests targeting Roslyn 4.3.0
+  - script: dotnet test tests\CommunityToolkit.Mvvm.SourceGenerators.UnitTests\CommunityToolkit.Mvvm.SourceGenerators.UnitTests.csproj -c Release -f net6.0 -p:MvvmToolkitSourceGeneratorRoslynVersion=4.3.0 -l "trx;LogFileName=VSTestResults_net6.0_mvvmtoolkit_generators_roslyn430.trx"
+    displayName: Run CommunityToolkit.Mvvm.SourceGenerators.UnitTests unit tests with Roslyn 4.3.0
 
   # Run .NET Core 3.1 tests
   - script: dotnet test -c Release -f netcoreapp3.1 -l "trx;LogFileName=VSTestResults_netcoreapp3.1.trx"
diff --git a/tests/CommunityToolkit.Mvvm.ExternalAssembly/CommunityToolkit.Mvvm.ExternalAssembly.csproj b/tests/CommunityToolkit.Mvvm.ExternalAssembly/CommunityToolkit.Mvvm.ExternalAssembly.csproj
index d2a95ec4..d0d39011 100644
--- a/tests/CommunityToolkit.Mvvm.ExternalAssembly/CommunityToolkit.Mvvm.ExternalAssembly.csproj
+++ b/tests/CommunityToolkit.Mvvm.ExternalAssembly/CommunityToolkit.Mvvm.ExternalAssembly.csproj
@@ -12,15 +12,9 @@
     <NoWarn>$(NoWarn);CS8002;SA0001</NoWarn>
   </PropertyGroup>
 
-  <!-- See comments in CommunityToolkit.MvvmUnitTests -->
-  <PropertyGroup>
-    <MvvmToolkitSourceGeneratorRoslynVersion Condition="'$(MvvmToolkitSourceGeneratorRoslynVersion)' == ''">4.3.0</MvvmToolkitSourceGeneratorRoslynVersion>
-  </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\CommunityToolkit.Mvvm\CommunityToolkit.Mvvm.csproj" />
-    <ProjectReference Include="..\..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" PrivateAssets="contentfiles;build">
-      <Properties>MvvmToolkitSourceGeneratorRoslynVersion=$(MvvmToolkitSourceGeneratorRoslynVersion)</Properties>
-    </ProjectReference>
+    <ProjectReference Include="..\..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" PrivateAssets="contentfiles;build" />
   </ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/tests/CommunityToolkit.Mvvm.SourceGenerators.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.UnitTests.csproj b/tests/CommunityToolkit.Mvvm.SourceGenerators.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.UnitTests.csproj
index d30d2e3c..9940b12f 100644
--- a/tests/CommunityToolkit.Mvvm.SourceGenerators.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.UnitTests.csproj
+++ b/tests/CommunityToolkit.Mvvm.SourceGenerators.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.UnitTests.csproj
@@ -12,15 +12,9 @@
     <PackageReference Include="MSTest.TestFramework" Version="2.2.8" />
   </ItemGroup>
 
-  <!-- See comments in CommunityToolkit.MvvmUnitTests -->
-  <PropertyGroup>
-    <MvvmToolkitSourceGeneratorRoslynVersion Condition="'$(MvvmToolkitSourceGeneratorRoslynVersion)' == ''">4.3.0</MvvmToolkitSourceGeneratorRoslynVersion>
-  </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\CommunityToolkit.Mvvm\CommunityToolkit.Mvvm.csproj" />
-    <ProjectReference Include="..\..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj">
-      <Properties>MvvmToolkitSourceGeneratorRoslynVersion=$(MvvmToolkitSourceGeneratorRoslynVersion)</Properties>
-    </ProjectReference>
+    <ProjectReference Include="..\..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj" />
   </ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/tests/CommunityToolkit.Mvvm.UnitTests/CommunityToolkit.Mvvm.UnitTests.csproj b/tests/CommunityToolkit.Mvvm.UnitTests/CommunityToolkit.Mvvm.UnitTests.csproj
index d033b532..ed165693 100644
--- a/tests/CommunityToolkit.Mvvm.UnitTests/CommunityToolkit.Mvvm.UnitTests.csproj
+++ b/tests/CommunityToolkit.Mvvm.UnitTests/CommunityToolkit.Mvvm.UnitTests.csproj
@@ -13,17 +13,8 @@
 
   <ItemGroup>
     <ProjectReference Include="..\CommunityToolkit.Mvvm.ExternalAssembly\CommunityToolkit.Mvvm.ExternalAssembly.csproj" />
-  </ItemGroup>
-
-  <!-- Since the MVVM Toolkit generator uses multi-targeting for Roslyn versions, we also want to test all of them here -->
-  <PropertyGroup>
-    <MvvmToolkitSourceGeneratorRoslynVersion Condition="'$(MvvmToolkitSourceGeneratorRoslynVersion)' == ''">4.3.0</MvvmToolkitSourceGeneratorRoslynVersion>
-  </PropertyGroup>
-  <ItemGroup>
     <ProjectReference Include="..\..\CommunityToolkit.Mvvm\CommunityToolkit.Mvvm.csproj" />
-    <ProjectReference Include="..\..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" PrivateAssets="contentfiles;build">
-      <Properties>MvvmToolkitSourceGeneratorRoslynVersion=$(MvvmToolkitSourceGeneratorRoslynVersion)</Properties>
-    </ProjectReference>
+    <ProjectReference Include="..\..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" PrivateAssets="contentfiles;build" />
   </ItemGroup>
 
 </Project>
\ No newline at end of file