diff --git a/schema/iiif_3_0.json b/schema/iiif_3_0.json
index 69ff710..bca3ffa 100644
--- a/schema/iiif_3_0.json
+++ b/schema/iiif_3_0.json
@@ -1020,7 +1020,7 @@
                     ]
                 }
             },
-            "required": ["source", "selector"]
+            "required": ["source"]
         },
         "selector": {
             "oneOf": [