Update package.json

Author: Nilan Marktanner

advanced/package.json

@@ -17,6 +17,6 @@
     "graphql-cli": "2.16.5",
     "nodemon": "1.18.3",
     "npm-run-all": "4.1.3",
-    "prisma": "1.14.2"
+    "prisma": "beta"
   }
 }