diff --git a/packages/block-library/src/column/block.json b/packages/block-library/src/column/block.json
index 826b916811cadc..44ef3438b2344a 100644
--- a/packages/block-library/src/column/block.json
+++ b/packages/block-library/src/column/block.json
@@ -17,7 +17,7 @@
 			"type": "array"
 		},
 		"templateLock": {
-			"type": "string",
+			"type": [ "string", "boolean" ],
 			"enum": [ "all", "insert", false ]
 		}
 	},
diff --git a/packages/block-library/src/cover/block.json b/packages/block-library/src/cover/block.json
index cac312ec13386c..aa00d403411f8b 100644
--- a/packages/block-library/src/cover/block.json
+++ b/packages/block-library/src/cover/block.json
@@ -67,7 +67,7 @@
 			"type": "array"
 		},
 		"templateLock": {
-			"type": "string",
+			"type": [ "string", "boolean" ],
 			"enum": [ "all", "insert", false ]
 		}
 	},
diff --git a/packages/block-library/src/group/block.json b/packages/block-library/src/group/block.json
index c10790d28c427c..d34729441d09e8 100644
--- a/packages/block-library/src/group/block.json
+++ b/packages/block-library/src/group/block.json
@@ -12,7 +12,7 @@
 			"default": "div"
 		},
 		"templateLock": {
-			"type": "string",
+			"type": [ "string", "boolean" ],
 			"enum": [ "all", "insert", false ]
 		}
 	},
diff --git a/packages/blocks/src/api/parser/test/get-block-attributes.js b/packages/blocks/src/api/parser/test/get-block-attributes.js
index 727f052a54c803..7b48db67fdb940 100644
--- a/packages/blocks/src/api/parser/test/get-block-attributes.js
+++ b/packages/blocks/src/api/parser/test/get-block-attributes.js
@@ -222,6 +222,22 @@ describe( 'attributes parsing', () => {
 			expect( value ).toBe( 10 );
 		} );
 
+		it( 'should return the comment attribute value when using multiple types', () => {
+			const value = getBlockAttribute(
+				'templateLock',
+				{
+					type: [ 'string', 'boolean' ],
+					enum: [ 'all', 'insert', false ],
+				},
+				'',
+				{
+					templateLock: false,
+				}
+			);
+
+			expect( value ).toBe( false );
+		} );
+
 		it( 'should reject type-invalid value, with default', () => {
 			const value = getBlockAttribute(
 				'number',