diff --git a/ns/oa.jsonld b/ns/oa.jsonld
index 2392975..63cfc49 100644
--- a/ns/oa.jsonld
+++ b/ns/oa.jsonld
@@ -521,7 +521,7 @@
     "dc:description": {
       "en": "This document describes the vocabulary used in the Modelling Opportunity Data specification."
     },
-    "dc:date": "2023-03-24",
+    "dc:date": "2023-06-28",
     "owl:versionInfo": "#",
     "rdfs_classes": [
       {