diff --git a/schema/jsoncv.schema.json b/schema/jsoncv.schema.json
index 381eba8..7d9b8ad 100644
--- a/schema/jsoncv.schema.json
+++ b/schema/jsoncv.schema.json
@@ -5,6 +5,7 @@
     "iso8601": {
       "type": "string",
       "description": "e.g. 2014-06-29",
+      "format": "date",
       "pattern": "^([1-2][0-9]{3}-[0-1][0-9]-[0-3][0-9]|[1-2][0-9]{3}-[0-1][0-9]|[1-2][0-9]{3})$"
     }
   },