diff --git a/static/schemas/Builder.schema.json b/static/schemas/Builder.schema.json
index 72ef9af..0bbbeaa 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:b43e10e2-d309-4b06-b557-22e10feff274"
+      "default": "xmp.iid:5cf1dd39-fa9c-46b6-bad3-b20aa4d9a2e8"
     },
     "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 eca5086..9e276df 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:efdec4cb-da48-4877-84c3-edf6eb10958d"
+      "default": "xmp.iid:f443a2d6-6a41-4a77-8ac7-d18264630a0e"
     },
     "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 8006a8d..d2c49b8 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:0249a270-66b8-434f-b844-ef6823733b67"
+          "default": "xmp.iid:231f4f2a-2695-4d6c-bb89-7e499001dfd4"
         },
         "thumbnail": {
           "anyOf": [