diff --git a/schema.json b/schema.json
index 4dccf1808..829864074 100644
--- a/schema.json
+++ b/schema.json
@@ -268,7 +268,17 @@
         ]
       },
       "url": {
-        "$ref": "#/definitions/non-empty-non-blank-string"
+        "oneOf": [
+          {
+            "type": "array",
+            "items": {
+              "$ref": "#/definitions/non-empty-non-blank-string"
+            }
+          },
+          {
+            "$ref": "#/definitions/non-empty-non-blank-string"
+          }
+        ]
       },
       "website": {
         "$ref": "#/definitions/non-empty-non-blank-string"