diff --git a/wp-admin/includes/ajax-actions.php b/wp-admin/includes/ajax-actions.php
index 75d7a61000..27ec0d8752 100644
--- a/wp-admin/includes/ajax-actions.php
+++ b/wp-admin/includes/ajax-actions.php
@@ -3556,9 +3556,9 @@ function wp_ajax_get_revision_diffs() {
 
 	$return = array();
 
-	// Removes the script timeout limit by setting it to 0 allowing ample time for diff UI setup.
 	if ( function_exists( 'set_time_limit' ) ) {
-		set_time_limit( 0 );
+		// Increase the script timeout limit to allow ample time for diff UI setup.
+		set_time_limit( 5 * MINUTE_IN_SECONDS );
 	}
 
 	foreach ( $_REQUEST['compare'] as $compare_key ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 269c6d73a4..ceb44bfc48 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.8-alpha-59287';
+$wp_version = '6.8-alpha-59288';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.