diff --git a/email-encryption-product/product.json b/email-encryption-product/product.json
index 8f0e84c..0977a17 100644
--- a/email-encryption-product/product.json
+++ b/email-encryption-product/product.json
@@ -1,5 +1,6 @@
 {
-  "installers": [
+  "$schema": "https://json-schema.axonivy.com/market/10.0.0/product.json",
+    "installers": [
     {
       "id": "maven-import",
       "data": {