diff --git a/docs/machine-learning/tutorials/snippets/iris-clustering/csharp/IrisFlowerClustering.csproj b/docs/machine-learning/tutorials/snippets/iris-clustering/csharp/IrisFlowerClustering.csproj
index 538e69e560c2e..a5b025ddc9b93 100644
--- a/docs/machine-learning/tutorials/snippets/iris-clustering/csharp/IrisFlowerClustering.csproj
+++ b/docs/machine-learning/tutorials/snippets/iris-clustering/csharp/IrisFlowerClustering.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.ML" Version="3.0.1" />
+    <PackageReference Include="Microsoft.ML" Version="4.0.0" />
   </ItemGroup>
 
   <ItemGroup>