diff --git a/eng/Version.Details.props b/eng/Version.Details.props
index d5ce40d6035..4afcc7c2efa 100644
--- a/eng/Version.Details.props
+++ b/eng/Version.Details.props
@@ -29,11 +29,11 @@ This file should be imported by eng/Versions.props
     <!-- dotnet/arcade dependencies -->
     <MicrosoftDotNetArcadeSdkPackageVersion>10.0.0-beta.26123.2</MicrosoftDotNetArcadeSdkPackageVersion>
     <!-- _git/dotnet-optimization dependencies -->
-    <optimizationlinuxarm64MIBCRuntimePackageVersion>1.0.0-prerelease.26117.2</optimizationlinuxarm64MIBCRuntimePackageVersion>
-    <optimizationlinuxx64MIBCRuntimePackageVersion>1.0.0-prerelease.26117.2</optimizationlinuxx64MIBCRuntimePackageVersion>
-    <optimizationwindows_ntarm64MIBCRuntimePackageVersion>1.0.0-prerelease.26117.2</optimizationwindows_ntarm64MIBCRuntimePackageVersion>
-    <optimizationwindows_ntx64MIBCRuntimePackageVersion>1.0.0-prerelease.26117.2</optimizationwindows_ntx64MIBCRuntimePackageVersion>
-    <optimizationwindows_ntx86MIBCRuntimePackageVersion>1.0.0-prerelease.26117.2</optimizationwindows_ntx86MIBCRuntimePackageVersion>
+    <optimizationlinuxarm64MIBCRuntimePackageVersion>1.0.0-prerelease.26126.1</optimizationlinuxarm64MIBCRuntimePackageVersion>
+    <optimizationlinuxx64MIBCRuntimePackageVersion>1.0.0-prerelease.26126.1</optimizationlinuxx64MIBCRuntimePackageVersion>
+    <optimizationwindows_ntarm64MIBCRuntimePackageVersion>1.0.0-prerelease.26126.1</optimizationwindows_ntarm64MIBCRuntimePackageVersion>
+    <optimizationwindows_ntx64MIBCRuntimePackageVersion>1.0.0-prerelease.26126.1</optimizationwindows_ntx64MIBCRuntimePackageVersion>
+    <optimizationwindows_ntx86MIBCRuntimePackageVersion>1.0.0-prerelease.26126.1</optimizationwindows_ntx86MIBCRuntimePackageVersion>
   </PropertyGroup>
   <!--Property group for alternate package version names-->
   <PropertyGroup>
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 701733c98cf..01b2aa0c9a0 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -80,25 +80,25 @@
       <Uri>https://github.com/dotnet/arcade</Uri>
       <Sha>4d898652733deb7dd274237ac06d27ee2ad85b36</Sha>
     </Dependency>
-    <Dependency Name="optimization.windows_nt-x64.MIBC.Runtime" Version="1.0.0-prerelease.26117.2">
+    <Dependency Name="optimization.windows_nt-x64.MIBC.Runtime" Version="1.0.0-prerelease.26126.1">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
-      <Sha>b8d6d5b5b651da6849a528be0266f11ce1568382</Sha>
+      <Sha>a5a3d66d28d70e5bf6e08b1d358f2c575addbc91</Sha>
     </Dependency>
-    <Dependency Name="optimization.windows_nt-x86.MIBC.Runtime" Version="1.0.0-prerelease.26117.2">
+    <Dependency Name="optimization.windows_nt-x86.MIBC.Runtime" Version="1.0.0-prerelease.26126.1">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
-      <Sha>b8d6d5b5b651da6849a528be0266f11ce1568382</Sha>
+      <Sha>a5a3d66d28d70e5bf6e08b1d358f2c575addbc91</Sha>
     </Dependency>
-    <Dependency Name="optimization.linux-x64.MIBC.Runtime" Version="1.0.0-prerelease.26117.2">
+    <Dependency Name="optimization.linux-x64.MIBC.Runtime" Version="1.0.0-prerelease.26126.1">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
-      <Sha>b8d6d5b5b651da6849a528be0266f11ce1568382</Sha>
+      <Sha>a5a3d66d28d70e5bf6e08b1d358f2c575addbc91</Sha>
     </Dependency>
-    <Dependency Name="optimization.windows_nt-arm64.MIBC.Runtime" Version="1.0.0-prerelease.26117.2">
+    <Dependency Name="optimization.windows_nt-arm64.MIBC.Runtime" Version="1.0.0-prerelease.26126.1">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
-      <Sha>b8d6d5b5b651da6849a528be0266f11ce1568382</Sha>
+      <Sha>a5a3d66d28d70e5bf6e08b1d358f2c575addbc91</Sha>
     </Dependency>
-    <Dependency Name="optimization.linux-arm64.MIBC.Runtime" Version="1.0.0-prerelease.26117.2">
+    <Dependency Name="optimization.linux-arm64.MIBC.Runtime" Version="1.0.0-prerelease.26126.1">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
-      <Sha>b8d6d5b5b651da6849a528be0266f11ce1568382</Sha>
+      <Sha>a5a3d66d28d70e5bf6e08b1d358f2c575addbc91</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>