diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 9c17f123167a21..5feca46e2a9d66 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -1,8 +1,8 @@
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.NETCore.Runtime.ICU.Transport" Version="6.0.0-alpha.1.21061.1">
+    <Dependency Name="Microsoft.NETCore.Runtime.ICU.Transport" Version="6.0.0-preview.1.21109.2">
       <Uri>https://github.com/dotnet/icu</Uri>
-      <Sha>51af90df737e1712bc88beb969589fa055170fe2</Sha>
+      <Sha>4d82e88fdc0c0c16815cafcb562de4ddb63deee0</Sha>
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index ae4576ab5e41fa..7012a2bcca6a19 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -155,7 +155,7 @@
     <!-- ILLink -->
     <MicrosoftNETILLinkTasksVersion>6.0.0-alpha.1.21072.3</MicrosoftNETILLinkTasksVersion>
     <!-- ICU -->
-    <MicrosoftNETCoreRuntimeICUTransportVersion>6.0.0-alpha.1.21061.1</MicrosoftNETCoreRuntimeICUTransportVersion>
+    <MicrosoftNETCoreRuntimeICUTransportVersion>6.0.0-preview.1.21109.2</MicrosoftNETCoreRuntimeICUTransportVersion>
     <!-- Mono LLVM -->
     <runtimelinuxarm64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>9.0.1-alpha.1.21064.1</runtimelinuxarm64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>
     <runtimelinuxarm64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>9.0.1-alpha.1.21064.1</runtimelinuxarm64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>