diff --git a/packages/block-library/src/breadcrumbs/block.json b/packages/block-library/src/breadcrumbs/block.json
index fbc6a9c05a02c..1bc24fd4c67e2 100644
--- a/packages/block-library/src/breadcrumbs/block.json
+++ b/packages/block-library/src/breadcrumbs/block.json
@@ -1,4 +1,5 @@
 {
+	"$schema": "https://schemas.wp.org/trunk/block.json",
 	"apiVersion": 2,
 	"name": "core/breadcrumbs",
 	"title": "Breadcrumbs",
diff --git a/test/integration/fixtures/blocks/core__breadcrumbs.html b/test/integration/fixtures/blocks/core__breadcrumbs.html
index 04b42fd0a59a7..80bbc89da1daa 100644
--- a/test/integration/fixtures/blocks/core__breadcrumbs.html
+++ b/test/integration/fixtures/blocks/core__breadcrumbs.html
@@ -1 +1 @@
-<!-- wp:breadcrumbs {"nestingLevel":4,"separator":"|","showLeadingSeparator":true} /-->
+<!-- wp:breadcrumbs {"separator":"|","showLeadingSeparator":true} /-->
diff --git a/test/integration/fixtures/blocks/core__breadcrumbs.json b/test/integration/fixtures/blocks/core__breadcrumbs.json
index 63f131ba4feb5..a57d7b17ab55f 100644
--- a/test/integration/fixtures/blocks/core__breadcrumbs.json
+++ b/test/integration/fixtures/blocks/core__breadcrumbs.json
@@ -1,16 +1,13 @@
 [
 	{
-		"clientId": "_clientId_0",
 		"name": "core/breadcrumbs",
 		"isValid": true,
 		"attributes": {
-			"nestingLevel": 4,
 			"separator": "|",
 			"showCurrentPageTitle": false,
 			"showLeadingSeparator": true,
 			"showSiteTitle": true
 		},
-		"innerBlocks": [],
-		"originalContent": ""
+		"innerBlocks": []
 	}
 ]
diff --git a/test/integration/fixtures/blocks/core__breadcrumbs.parsed.json b/test/integration/fixtures/blocks/core__breadcrumbs.parsed.json
index 799a909a9b13f..1cd2771767944 100644
--- a/test/integration/fixtures/blocks/core__breadcrumbs.parsed.json
+++ b/test/integration/fixtures/blocks/core__breadcrumbs.parsed.json
@@ -2,7 +2,6 @@
 	{
 		"blockName": "core/breadcrumbs",
 		"attrs": {
-			"nestingLevel": 4,
 			"separator": "|",
 			"showLeadingSeparator": true
 		},
diff --git a/test/integration/fixtures/blocks/core__breadcrumbs.serialized.html b/test/integration/fixtures/blocks/core__breadcrumbs.serialized.html
index 04b42fd0a59a7..80bbc89da1daa 100644
--- a/test/integration/fixtures/blocks/core__breadcrumbs.serialized.html
+++ b/test/integration/fixtures/blocks/core__breadcrumbs.serialized.html
@@ -1 +1 @@
-<!-- wp:breadcrumbs {"nestingLevel":4,"separator":"|","showLeadingSeparator":true} /-->
+<!-- wp:breadcrumbs {"separator":"|","showLeadingSeparator":true} /-->