diff --git a/packages/block-library/src/group/deprecated.js b/packages/block-library/src/group/deprecated.js
index 68c01c7d3b16f7..af52b14c7c5e6e 100644
--- a/packages/block-library/src/group/deprecated.js
+++ b/packages/block-library/src/group/deprecated.js
@@ -136,7 +136,8 @@ const deprecated = [
 				default: 'div',
 			},
 			templateLock: {
-				type: 'string',
+				type: [ 'string', 'boolean' ],
+				enum: [ 'all', 'insert', false ],
 			},
 		},
 		supports: {