diff --git a/static/schemas/Builder.schema.json b/static/schemas/Builder.schema.json
index 95ab9755..72ef9af6 100644
--- a/static/schemas/Builder.schema.json
+++ b/static/schemas/Builder.schema.json
@@ -53,7 +53,7 @@
     "instance_id": {
       "description": "Instance ID from `xmpMM:InstanceID` in XMP metadata.",
       "type": "string",
-      "default": "xmp.iid:7bdc1d51-a909-4a72-a0b0-6de91856404d"
+      "default": "xmp.iid:b43e10e2-d309-4b06-b557-22e10feff274"
     },
     "thumbnail": {
       "description": "An optional ResourceRef to a thumbnail image that represents the asset that was signed.\nMust be available when the manifest is signed.",
diff --git a/static/schemas/ManifestDefinition.schema.json b/static/schemas/ManifestDefinition.schema.json
index 19a7b98c..eca50866 100644
--- a/static/schemas/ManifestDefinition.schema.json
+++ b/static/schemas/ManifestDefinition.schema.json
@@ -53,7 +53,7 @@
     "instance_id": {
       "description": "Instance ID from `xmpMM:InstanceID` in XMP metadata.",
       "type": "string",
-      "default": "xmp.iid:705f677d-e612-4de3-a159-20521219e66f"
+      "default": "xmp.iid:efdec4cb-da48-4877-84c3-edf6eb10958d"
     },
     "thumbnail": {
       "description": "An optional ResourceRef to a thumbnail image that represents the asset that was signed.\nMust be available when the manifest is signed.",
diff --git a/static/schemas/Reader.schema.json b/static/schemas/Reader.schema.json
index 8a38fa56..8006a8d9 100644
--- a/static/schemas/Reader.schema.json
+++ b/static/schemas/Reader.schema.json
@@ -108,7 +108,7 @@
         "instance_id": {
           "description": "Instance ID from `xmpMM:InstanceID` in XMP metadata.",
           "type": "string",
-          "default": "xmp.iid:c3f3dbd6-993f-4a4e-bd86-17feeaa93173"
+          "default": "xmp.iid:0249a270-66b8-434f-b844-ef6823733b67"
         },
         "thumbnail": {
           "anyOf": [