diff --git a/global.json b/global.json
index 0947f07453d24c..f3df933de88558 100644
--- a/global.json
+++ b/global.json
@@ -1,11 +1,11 @@
 {
   "sdk": {
-    "version": "9.0.100-preview.6.24328.19",
+    "version": "9.0.100-preview.5.24307.3",
     "allowPrerelease": true,
     "rollForward": "major"
   },
   "tools": {
-    "dotnet": "9.0.100-preview.6.24328.19"
+    "dotnet": "9.0.100-preview.5.24307.3"
   },
   "msbuild-sdks": {
     "Microsoft.DotNet.Arcade.Sdk": "9.0.0-beta.24375.3",
diff --git a/src/mono/sample/wasm/blazor-frame/blazor.csproj b/src/mono/sample/wasm/blazor-frame/blazor.csproj
index 1de3023c4e481d..278a2107e6e356 100644
--- a/src/mono/sample/wasm/blazor-frame/blazor.csproj
+++ b/src/mono/sample/wasm/blazor-frame/blazor.csproj
@@ -11,8 +11,8 @@
 
   <ItemGroup>
     <!-- TODO un-pin this when it's possible -->
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="9.0.0-preview.6.24328.4" />
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="9.0.0-preview.6.24328.4" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="9.0.0-preview.5.24306.11" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="9.0.0-preview.5.24306.11" PrivateAssets="all" />
   </ItemGroup>
 
 </Project>
diff --git a/src/mono/wasm/testassets/WasmOnAspNetCore/AspNetCoreServer/AspNetCoreServer.csproj b/src/mono/wasm/testassets/WasmOnAspNetCore/AspNetCoreServer/AspNetCoreServer.csproj
index 3d0fa0a57f9a73..5606622f348ea5 100644
--- a/src/mono/wasm/testassets/WasmOnAspNetCore/AspNetCoreServer/AspNetCoreServer.csproj
+++ b/src/mono/wasm/testassets/WasmOnAspNetCore/AspNetCoreServer/AspNetCoreServer.csproj
@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.Server" Version="9.0.0-preview.6.24328.4" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.Server" Version="9.0.0-preview.5.24306.11" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/mono/wasm/testassets/WasmOnAspNetCore/BlazorClient/BlazorClient.csproj b/src/mono/wasm/testassets/WasmOnAspNetCore/BlazorClient/BlazorClient.csproj
index b3535d0b965abc..40518a0b4345d8 100644
--- a/src/mono/wasm/testassets/WasmOnAspNetCore/BlazorClient/BlazorClient.csproj
+++ b/src/mono/wasm/testassets/WasmOnAspNetCore/BlazorClient/BlazorClient.csproj
@@ -12,8 +12,8 @@
 
   <!-- versions are pinned but when run from WBT level, it's taking in-tree runtime -->
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="9.0.0-preview.6.24328.4" />
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="9.0.0-preview.6.24328.4" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="9.0.0-preview.5.24306.11" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="9.0.0-preview.5.24306.11" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/mono/wasm/testassets/WasmOnAspNetCore/Shared/Shared.csproj b/src/mono/wasm/testassets/WasmOnAspNetCore/Shared/Shared.csproj
index 968e48496a1e8a..458fcffbabb786 100644
--- a/src/mono/wasm/testassets/WasmOnAspNetCore/Shared/Shared.csproj
+++ b/src/mono/wasm/testassets/WasmOnAspNetCore/Shared/Shared.csproj
@@ -10,7 +10,7 @@
 
   <!-- versions are pinned but when run from WBT level, it's taking in-tree runtime -->
   <ItemGroup>
-    <PackageReference Include="System.Net.Http.Json" Version="9.0.0-preview.6.24327.7" />
-    <PackageReference Include="Microsoft.AspNetCore.SignalR.Client" Version="9.0.0-preview.6.24328.4" />
+    <PackageReference Include="System.Net.Http.Json" Version="9.0.0-preview.5.24306.7" />
+    <PackageReference Include="Microsoft.AspNetCore.SignalR.Client" Version="9.0.0-preview.5.24306.11" />
   </ItemGroup>
 </Project>