diff --git a/global.json b/global.json
index ba844d7..f8fd6e0 100644
--- a/global.json
+++ b/global.json
@@ -5,7 +5,7 @@
     "allowPrerelease": false
   },
   "msbuild-sdks": {
-    "Buildvana.Sdk": "1.0.0-alpha.15",
+    "Buildvana.Sdk": "1.0.0-alpha.21",
     "Microsoft.Build.NoTargets": "3.3.0"
   }
 }