Use the released version of the Sling Starter
diff --git a/org.apache.sling.graphql.samples.website/src/main/features/feature-graphql-example-website.json b/org.apache.sling.graphql.samples.website/src/main/features/feature-graphql-example-website.json
index 9f4a5ec..0930b41 100644
--- a/org.apache.sling.graphql.samples.website/src/main/features/feature-graphql-example-website.json
+++ b/org.apache.sling.graphql.samples.website/src/main/features/feature-graphql-example-website.json
@@ -6,7 +6,7 @@
   "license":"Apache License, Version 2.0",
   "variables":{},
   "prototype" : {
-    "id" : "org.apache.sling:org.apache.sling.starter:slingosgifeature:oak_tar:12-SNAPSHOT"
+    "id" : "org.apache.sling:org.apache.sling.starter:slingosgifeature:oak_tar:12"
   },
   "bundles":[
     {