diff --git a/CHANGELOG.md b/CHANGELOG.md
index 431fed8..8bbd14a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,9 @@ This is an alpha version! The changes listed here are not final.
 ### Changed
 - Updated package dependencies.
 
+### Removed
+- Tests: remove invalid tests for WP 6.3
+
 ## [1.56.0] - 2023-08-01
 ### Added
 - Add a filter to modify response for the `jetpack.idcUrlValidation` endpoint, add unit test. [#32005]
diff --git a/tests/php/test_Signature.php b/tests/php/test_Signature.php
index 7d156af..4e57825 100644
--- a/tests/php/test_Signature.php
+++ b/tests/php/test_Signature.php
@@ -366,22 +366,11 @@ public function get_request_port_data_provider() {
 			),
 
 			// Invalid values.
-			array(
-				'',
-				new stdClass(),
-				'',
-			),
 			array(
 				'',
 				'string',
 				'',
 			),
-			array(
-				'',
-				array( 'string' ),
-				'',
-			),
-
 		);
 	}