diff --git a/.tonic_example.js b/.tonic_example.js
index 72433a513..0d578d5d5 100644
--- a/.tonic_example.js
+++ b/.tonic_example.js
@@ -2,10 +2,13 @@ const Ajv = require("ajv")
 const ajv = new Ajv({allErrors: true})
 
 const schema = {
+  type: "object",
   properties: {
     foo: {type: "string"},
     bar: {type: "number", maximum: 3},
   },
+  required: ["foo", "bar"],
+  additionalProperties: false,
 }
 
 const validate = ajv.compile(schema)
diff --git a/package.json b/package.json
index 190540e70..0067fd3bb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ajv",
-  "version": "8.0.0-beta.2",
+  "version": "8.0.0-beta.3",
   "description": "Another JSON Schema Validator",
   "main": "dist/ajv.js",
   "types": "dist/ajv.d.ts",