diff --git a/global.json b/global.json
index da4a3d0..94c1b09 100644
--- a/global.json
+++ b/global.json
@@ -5,5 +5,5 @@
     "allowPrerelease": false
   },
   "msbuild-sdks": {
-    "Buildvana.Sdk": "1.0.0-alpha.15"
+    "Buildvana.Sdk": "1.0.0-alpha.21"
 }}