diff --git a/eng/Version.Details.props b/eng/Version.Details.props
index 8198264a4a0..8dbcf149ce8 100644
--- a/eng/Version.Details.props
+++ b/eng/Version.Details.props
@@ -13,11 +13,11 @@ This file should be imported by eng/Versions.props
     <MicrosoftBuildTasksCorePackageVersion>18.8.0-preview-26275-09</MicrosoftBuildTasksCorePackageVersion>
     <MicrosoftBuildUtilitiesCorePackageVersion>18.8.0-preview-26275-09</MicrosoftBuildUtilitiesCorePackageVersion>
     <!-- dotnet-optimization dependencies -->
-    <optimizationlinuxarm64MIBCRuntimePackageVersion>1.0.0-prerelease.26276.2</optimizationlinuxarm64MIBCRuntimePackageVersion>
-    <optimizationlinuxx64MIBCRuntimePackageVersion>1.0.0-prerelease.26276.2</optimizationlinuxx64MIBCRuntimePackageVersion>
-    <optimizationwindows_ntarm64MIBCRuntimePackageVersion>1.0.0-prerelease.26276.2</optimizationwindows_ntarm64MIBCRuntimePackageVersion>
-    <optimizationwindows_ntx64MIBCRuntimePackageVersion>1.0.0-prerelease.26276.2</optimizationwindows_ntx64MIBCRuntimePackageVersion>
-    <optimizationwindows_ntx86MIBCRuntimePackageVersion>1.0.0-prerelease.26276.2</optimizationwindows_ntx86MIBCRuntimePackageVersion>
+    <optimizationlinuxarm64MIBCRuntimePackageVersion>1.0.0-prerelease.26309.1</optimizationlinuxarm64MIBCRuntimePackageVersion>
+    <optimizationlinuxx64MIBCRuntimePackageVersion>1.0.0-prerelease.26309.1</optimizationlinuxx64MIBCRuntimePackageVersion>
+    <optimizationwindows_ntarm64MIBCRuntimePackageVersion>1.0.0-prerelease.26309.1</optimizationwindows_ntarm64MIBCRuntimePackageVersion>
+    <optimizationwindows_ntx64MIBCRuntimePackageVersion>1.0.0-prerelease.26309.1</optimizationwindows_ntx64MIBCRuntimePackageVersion>
+    <optimizationwindows_ntx86MIBCRuntimePackageVersion>1.0.0-prerelease.26309.1</optimizationwindows_ntx86MIBCRuntimePackageVersion>
     <!-- dotnet-roslyn dependencies -->
     <MicrosoftCodeAnalysisPackageVersion>5.9.0-1.26302.3</MicrosoftCodeAnalysisPackageVersion>
     <MicrosoftCodeAnalysisCompilersPackageVersion>5.9.0-1.26302.3</MicrosoftCodeAnalysisCompilersPackageVersion>
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 222157fba7e..4d1eaa5ea4b 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -86,25 +86,25 @@
       <Uri>https://github.com/dotnet/arcade</Uri>
       <Sha>2a80f6e04a835d6beee635c93331b38944de8129</Sha>
     </Dependency>
-    <Dependency Name="optimization.windows_nt-x64.MIBC.Runtime" Version="1.0.0-prerelease.26276.2">
+    <Dependency Name="optimization.windows_nt-x64.MIBC.Runtime" Version="1.0.0-prerelease.26309.1">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
-      <Sha>66482c2bec0351f496e4cc18d98f0f55f78b0c78</Sha>
+      <Sha>b5964e83d71a6fbe08ae90fd5f5a2556917d27e6</Sha>
     </Dependency>
-    <Dependency Name="optimization.windows_nt-x86.MIBC.Runtime" Version="1.0.0-prerelease.26276.2">
+    <Dependency Name="optimization.windows_nt-x86.MIBC.Runtime" Version="1.0.0-prerelease.26309.1">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
-      <Sha>66482c2bec0351f496e4cc18d98f0f55f78b0c78</Sha>
+      <Sha>b5964e83d71a6fbe08ae90fd5f5a2556917d27e6</Sha>
     </Dependency>
-    <Dependency Name="optimization.linux-x64.MIBC.Runtime" Version="1.0.0-prerelease.26276.2">
+    <Dependency Name="optimization.linux-x64.MIBC.Runtime" Version="1.0.0-prerelease.26309.1">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
-      <Sha>66482c2bec0351f496e4cc18d98f0f55f78b0c78</Sha>
+      <Sha>b5964e83d71a6fbe08ae90fd5f5a2556917d27e6</Sha>
     </Dependency>
-    <Dependency Name="optimization.windows_nt-arm64.MIBC.Runtime" Version="1.0.0-prerelease.26276.2">
+    <Dependency Name="optimization.windows_nt-arm64.MIBC.Runtime" Version="1.0.0-prerelease.26309.1">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
-      <Sha>66482c2bec0351f496e4cc18d98f0f55f78b0c78</Sha>
+      <Sha>b5964e83d71a6fbe08ae90fd5f5a2556917d27e6</Sha>
     </Dependency>
-    <Dependency Name="optimization.linux-arm64.MIBC.Runtime" Version="1.0.0-prerelease.26276.2">
+    <Dependency Name="optimization.linux-arm64.MIBC.Runtime" Version="1.0.0-prerelease.26309.1">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
-      <Sha>66482c2bec0351f496e4cc18d98f0f55f78b0c78</Sha>
+      <Sha>b5964e83d71a6fbe08ae90fd5f5a2556917d27e6</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>