diff --git a/samples/MusicStore.Standalone/project.json b/samples/MusicStore.Standalone/project.json
index 127a57a5ff..cd481569b6 100644
--- a/samples/MusicStore.Standalone/project.json
+++ b/samples/MusicStore.Standalone/project.json
@@ -72,7 +72,7 @@
     }
   },
   "tools": {
-    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final"
+    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.1.0-preview4-final"
   },
   "scripts": {
     "postpublish": "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%"
diff --git a/samples/MusicStore/project.json b/samples/MusicStore/project.json
index 3e249b1e25..ba139d75ef 100644
--- a/samples/MusicStore/project.json
+++ b/samples/MusicStore/project.json
@@ -63,7 +63,7 @@
     }
   },
   "tools": {
-    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final"
+    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.1.0-preview4-final"
   },
   "scripts": {
     "postpublish": "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%"