diff --git a/wp-admin/includes/class-wp-site-health.php b/wp-admin/includes/class-wp-site-health.php
index 4fec62defa..b4231e3f64 100644
--- a/wp-admin/includes/class-wp-site-health.php
+++ b/wp-admin/includes/class-wp-site-health.php
@@ -2598,8 +2598,11 @@ class WP_Site_Health {
 
 		$total_length = 0;
 
-		foreach ( $alloptions as $option_name => $option_value ) {
-			$total_length += strlen( $option_value );
+		foreach ( $alloptions as $option_value ) {
+			if ( is_array( $option_value ) || is_object( $option_value ) ) {
+				$option_value = maybe_serialize( $option_value );
+			}
+			$total_length += strlen( (string) $option_value );
 		}
 
 		return $total_length;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 4b57ed83e9..e7c87a0990 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.6-beta1-58337';
+$wp_version = '6.6-beta1-58338';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.