diff --git a/Calorific/schema.json b/Calorific/schema.json
index 7a202508..c8127e8b 100644
--- a/Calorific/schema.json
+++ b/Calorific/schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/schema#",
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
   "$schemaVersion": "0.0.1",
   "modelTags": "OCF",
   "$id": "https://smart-data-models.github.io/dataModel.IoTDataModels/Calorific/schema.json",
@@ -78,4 +78,4 @@
     "id",
     "type"
   ]
-}
+}
\ No newline at end of file