diff --git a/NuGet.config b/NuGet.config
index 10463f58216..f0da823560c 100644
--- a/NuGet.config
+++ b/NuGet.config
@@ -17,6 +17,49 @@
     <add key="dotnet11" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet11/nuget/v3/index.json" />
     <add key="dotnet11-transport" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet11-transport/nuget/v3/index.json" />
   </packageSources>
+  <packageSourceMapping>
+    <clear />
+    <packageSource key="dotnet-public">
+      <package pattern="microsoft.*" />
+      <package pattern="runtime.*" />
+      <package pattern="system.*" />
+      <package pattern="*" />
+    </packageSource>
+    <packageSource key="dotnet-tools">
+      <package pattern="microsoft.*" />
+    </packageSource>
+    <packageSource key="dotnet-eng">
+      <package pattern="microsoft.*" />
+      <package pattern="*" />
+    </packageSource>
+    <packageSource key="dotnet-libraries">
+      <package pattern="system.*" />
+    </packageSource>
+    <packageSource key="dotnet-libraries-transport">
+      <package pattern="microsoft.*" />
+    </packageSource>
+    <packageSource key="dotnet9">
+      <package pattern="microsoft.*" />
+      <package pattern="system.*" />
+    </packageSource>
+    <packageSource key="dotnet9-transport">
+      <package pattern="microsoft.*" />
+    </packageSource>
+    <packageSource key="dotnet10">
+      <package pattern="microsoft.*" />
+      <package pattern="system.*" />
+    </packageSource>
+    <packageSource key="dotnet10-transport">
+      <package pattern="microsoft.*" />
+    </packageSource>
+    <packageSource key="dotnet11">
+      <package pattern="microsoft.*" />
+      <package pattern="system.*" />
+    </packageSource>
+    <packageSource key="dotnet11-transport">
+      <package pattern="microsoft.*" />
+    </packageSource>
+  </packageSourceMapping>
   <disabledPackageSources>
     <clear />
   </disabledPackageSources>