diff --git a/src/CliVersion.props b/src/CliVersion.props
index dfb9ec9..ba84bcd 100644
--- a/src/CliVersion.props
+++ b/src/CliVersion.props
@@ -4,6 +4,6 @@
     <AssemblyVersion>1.0.0.0</AssemblyVersion>
     <FileVersion>1.0.0.0</FileVersion>
     <!-- Pinned Core package version. Override with -p:M3UndleCoreVersion=<version> for compatibility testing. -->
-    <M3UndleCoreVersion Condition="'$(M3UndleCoreVersion)' == ''">1.0.0-alpha.6</M3UndleCoreVersion>
+    <M3UndleCoreVersion Condition="'$(M3UndleCoreVersion)' == ''">1.0.0-alpha.6-dev.1</M3UndleCoreVersion>
   </PropertyGroup>
 </Project>
diff --git a/tests/M3Undle.Cli.Tests/M3Undle.Cli.Tests.csproj b/tests/M3Undle.Cli.Tests/M3Undle.Cli.Tests.csproj
index fbab507..46529ed 100644
--- a/tests/M3Undle.Cli.Tests/M3Undle.Cli.Tests.csproj
+++ b/tests/M3Undle.Cli.Tests/M3Undle.Cli.Tests.csproj
@@ -10,7 +10,7 @@
     <M3UndleCoreVersion Condition="'$(M3UndleCoreVersion)' == ''">1.0.0-alpha.6-dev.1</M3UndleCoreVersion>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="MSTest" Version="4.2.2" />
+    <PackageReference Include="MSTest" Version="4.2.3" />
     <PackageReference Include="M3Undle.Core" Version="$(M3UndleCoreVersion)" />
   </ItemGroup>
   <ItemGroup>