diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 122c976c9082a7..0bbba9b9ab3236 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -12,9 +12,9 @@
       <Uri>https://github.com/dotnet/wcf</Uri>
       <Sha>7f504aabb1988e9a093c1e74d8040bd52feb2f01</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NET.Runtime.Emscripten.3.1.34.Python.win-x64" Version="9.0.0-preview.7.24319.4">
+    <Dependency Name="Microsoft.NET.Runtime.Emscripten.3.1.34.Python.win-x64" Version="9.0.0-preview.6.24319.1">
       <Uri>https://github.com/dotnet/emsdk</Uri>
-      <Sha>ffe9afdc046cf7a6f82cc7c5796aade54047af64</Sha>
+      <Sha>9880d891ddfddee1b1182c149468a43b89c090a0</Sha>
     </Dependency>
     <Dependency Name="runtime.linux-arm64.Microsoft.NETCore.Runtime.JIT.Tools" Version="16.0.5-alpha.1.24204.1" CoherentParentDependency="Microsoft.NET.Workload.Emscripten.Current.Manifest-9.0.100.Transport">
       <Uri>https://github.com/dotnet/llvm-project</Uri>
@@ -68,14 +68,14 @@
       <Sha>d145726036eb9c09a0e3cf03c4f70effd3b31cd7</Sha>
       <SourceBuild RepoName="cecil" ManagedOnly="true" />
     </Dependency>
-    <Dependency Name="Microsoft.NET.Workload.Emscripten.Current.Manifest-9.0.100.Transport" Version="9.0.0-preview.7.24319.4">
+    <Dependency Name="Microsoft.NET.Workload.Emscripten.Current.Manifest-9.0.100.Transport" Version="9.0.0-preview.6.24319.1">
       <Uri>https://github.com/dotnet/emsdk</Uri>
-      <Sha>ffe9afdc046cf7a6f82cc7c5796aade54047af64</Sha>
+      <Sha>9880d891ddfddee1b1182c149468a43b89c090a0</Sha>
     </Dependency>
     <!-- Intermediate is necessary for source build. -->
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.emsdk" Version="9.0.0-preview.7.24319.4">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.emsdk" Version="9.0.0-preview.6.24319.1">
       <Uri>https://github.com/dotnet/emsdk</Uri>
-      <Sha>ffe9afdc046cf7a6f82cc7c5796aade54047af64</Sha>
+      <Sha>9880d891ddfddee1b1182c149468a43b89c090a0</Sha>
       <SourceBuild RepoName="emsdk" ManagedOnly="true" />
     </Dependency>
     <!-- Intermediate is necessary for source build. -->
diff --git a/eng/Versions.props b/eng/Versions.props
index 048346dc91024e..bb870373d607af 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -237,9 +237,9 @@
          Note: when the name is updated, make sure to update dependency name in eng/pipelines/common/xplat-setup.yml
                like - DarcDependenciesChanged.Microsoft_NET_Workload_Emscripten_Current_Manifest-9_0_100_Transport
     -->
-    <MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion>9.0.0-preview.7.24319.4</MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion>
+    <MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion>9.0.0-preview.6.24319.1</MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion>
     <MicrosoftNETRuntimeEmscriptenVersion>$(MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion)</MicrosoftNETRuntimeEmscriptenVersion>
-    <MicrosoftNETRuntimeEmscripten3134Pythonwinx64Version>9.0.0-preview.7.24319.4</MicrosoftNETRuntimeEmscripten3134Pythonwinx64Version>
+    <MicrosoftNETRuntimeEmscripten3134Pythonwinx64Version>9.0.0-preview.6.24319.1</MicrosoftNETRuntimeEmscripten3134Pythonwinx64Version>
     <!-- workloads -->
     <SwixPackageVersion>1.1.87-gba258badda</SwixPackageVersion>
     <WixPackageVersion>1.0.0-v3.14.0.5722</WixPackageVersion>