diff --git a/plugins/woocommerce-admin/tests/api/reports-orders-stats.php b/plugins/woocommerce-admin/tests/api/reports-orders-stats.php
index cf4d2e3bd9b..893e5c95614 100644
--- a/plugins/woocommerce-admin/tests/api/reports-orders-stats.php
+++ b/plugins/woocommerce-admin/tests/api/reports-orders-stats.php
@@ -132,6 +132,11 @@ class WC_Tests_API_Reports_Orders_Stats extends WC_REST_Unit_Test_Case {
 	 * Test filtering by product attribute(s).
 	 */
 	public function test_product_attributes_filter() {
+		global $wp_version;
+		if ( version_compare( $wp_version, '5.5', '<' ) ) {
+			$this->markTestSkipped( 'Skipped in older versions of WordPress due to a bug in WP when validating arrays.' );
+		}
+
 		global $wpdb;
 		wp_set_current_user( $this->user );
 		WC_Helper_Reports::reset_stats_dbs();
diff --git a/plugins/woocommerce-admin/tests/api/reports-orders.php b/plugins/woocommerce-admin/tests/api/reports-orders.php
index 15ae71434cb..fa50f8413f1 100644
--- a/plugins/woocommerce-admin/tests/api/reports-orders.php
+++ b/plugins/woocommerce-admin/tests/api/reports-orders.php
@@ -133,6 +133,11 @@ class WC_Tests_API_Reports_Orders extends WC_REST_Unit_Test_Case {
 	 * Test filtering by taxonomy-backed product attribute(s).
 	 */
 	public function test_product_attributes_filter() {
+		global $wp_version;
+		if ( version_compare( $wp_version, '5.5', '<' ) ) {
+			$this->markTestSkipped( 'Skipped in older versions of WordPress due to a bug in WP when validating arrays.' );
+		}
+
 		wp_set_current_user( $this->user );
 		WC_Helper_Reports::reset_stats_dbs();
 
@@ -236,6 +241,11 @@ class WC_Tests_API_Reports_Orders extends WC_REST_Unit_Test_Case {
 	 * Test filtering by custom product attribute(s).
 	 */
 	public function test_custom_product_attributes_filter() {
+		global $wp_version;
+		if ( version_compare( $wp_version, '5.5', '<' ) ) {
+			$this->markTestSkipped( 'Skipped in older versions of WordPress due to a bug in WP when validating arrays.' );
+		}
+
 		wp_set_current_user( $this->user );
 		WC_Helper_Reports::reset_stats_dbs();