diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 70cf59b7ed..613e3e1a38 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -17,13 +17,13 @@
       <Uri>https://dev.azure.com/devdiv/DevDiv/_git/vs-code-coverage</Uri>
       <Sha>b3ec110c7b23b6f726c516763f6810e74be7b192</Sha>
     </Dependency>
-    <Dependency Name="MSTest" Version="4.1.0-preview.25558.6">
+    <Dependency Name="MSTest" Version="4.1.0-preview.25559.1">
       <Uri>https://github.com/microsoft/testfx</Uri>
-      <Sha>7df896aeec9505a44371dbe0dd2712764d0ce0f6</Sha>
+      <Sha>29aa788ac17beff2313e392de6c484f585b4f59b</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Testing.Platform" Version="2.1.0-preview.25558.6">
+    <Dependency Name="Microsoft.Testing.Platform" Version="2.1.0-preview.25559.1">
       <Uri>https://github.com/microsoft/testfx</Uri>
-      <Sha>7df896aeec9505a44371dbe0dd2712764d0ce0f6</Sha>
+      <Sha>29aa788ac17beff2313e392de6c484f585b4f59b</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index a99b2c2822..c007c63005 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -10,7 +10,7 @@
     <MicrosoftDotNetBuildTasksTemplatingPackageVersion>11.0.0-beta.25557.2</MicrosoftDotNetBuildTasksTemplatingPackageVersion>
     <MicrosoftTestingExtensionsCodeCoverageVersion>18.1.0-preview.25507.2</MicrosoftTestingExtensionsCodeCoverageVersion>
     <!-- empty line to avoid merge conflicts for darc PRs to update CC and MSTest+MTP -->
-    <MSTestVersion>4.1.0-preview.25558.6</MSTestVersion>
-    <MicrosoftTestingPlatformVersion>2.1.0-preview.25558.6</MicrosoftTestingPlatformVersion>
+    <MSTestVersion>4.1.0-preview.25559.1</MSTestVersion>
+    <MicrosoftTestingPlatformVersion>2.1.0-preview.25559.1</MicrosoftTestingPlatformVersion>
   </PropertyGroup>
 </Project>