diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index e78dd84fe538..d081718916b9 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -410,13 +410,13 @@
       <Uri>https://github.com/dotnet/arcade</Uri>
       <Sha>31624193093a13f765ab5382509e693911264509</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Extensions.Diagnostics.Testing" Version="9.0.0-preview.9.24503.1">
+    <Dependency Name="Microsoft.Extensions.Diagnostics.Testing" Version="9.1.0-preview.1.24525.2">
       <Uri>https://github.com/dotnet/extensions</Uri>
-      <Sha>e11fb6176dbab6b027c946ff030dc14e666e1838</Sha>
+      <Sha>443dc6e0052405b308671b5d4ca94ae2368d1d0d</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Extensions.TimeProvider.Testing" Version="9.0.0-preview.9.24503.1">
+    <Dependency Name="Microsoft.Extensions.TimeProvider.Testing" Version="9.1.0-preview.1.24525.2">
       <Uri>https://github.com/dotnet/extensions</Uri>
-      <Sha>e11fb6176dbab6b027c946ff030dc14e666e1838</Sha>
+      <Sha>443dc6e0052405b308671b5d4ca94ae2368d1d0d</Sha>
     </Dependency>
     <Dependency Name="NuGet.Frameworks" Version="6.2.4">
       <Uri>https://github.com/nuget/nuget.client</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index 9447b678a30f..630af24011fb 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -142,8 +142,8 @@
     <SystemIOHashingVersion>10.0.0-alpha.1.24526.1</SystemIOHashingVersion>
     <SystemRuntimeCachingVersion>10.0.0-alpha.1.24526.1</SystemRuntimeCachingVersion>
     <!-- Packages from dotnet/extensions -->
-    <MicrosoftExtensionsDiagnosticsTestingVersion>9.0.0-preview.9.24503.1</MicrosoftExtensionsDiagnosticsTestingVersion>
-    <MicrosoftExtensionsTimeProviderTestingVersion>9.0.0-preview.9.24503.1</MicrosoftExtensionsTimeProviderTestingVersion>
+    <MicrosoftExtensionsDiagnosticsTestingVersion>9.1.0-preview.1.24525.2</MicrosoftExtensionsDiagnosticsTestingVersion>
+    <MicrosoftExtensionsTimeProviderTestingVersion>9.1.0-preview.1.24525.2</MicrosoftExtensionsTimeProviderTestingVersion>
     <!-- Packages from dotnet/efcore -->
     <dotnetefVersion>10.0.0-alpha.1.24522.1</dotnetefVersion>
     <MicrosoftEntityFrameworkCoreInMemoryVersion>10.0.0-alpha.1.24522.1</MicrosoftEntityFrameworkCoreInMemoryVersion>