deploy: c278fa8

covjson · Jun 22, 2022 · 7b4ba83 · 7b4ba83
1 parent 61d871c
commit 7b4ba83
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/schema.json b/schema.json
@@ -1399,7 +1399,15 @@
             "description": "Temporal reference system",
             "properties": {
               "calendar": {
-                "type": "string"
+                "type": "string",
+                "oneOf": [
+                  {
+                    "const": "Gregorian"
+                  },
+                  {
+                    "pattern": "^https?://"
+                  }
+                ]
               },
               "timeScale": {
                 "type": "string"