diff --git a/functions.php b/functions.php
index 772ce087f..48ece08fa 100644
--- a/functions.php
+++ b/functions.php
@@ -140,7 +140,7 @@ function twentytwelve_scripts_styles() {
 		wp_enqueue_script( 'comment-reply' );
 
 	// Adds JavaScript for handling the navigation menu hide-and-show behavior.
-	wp_enqueue_script( 'twentytwelve-navigation', get_template_directory_uri() . '/js/navigation.js', array( 'jquery' ), '20140318', true );
+	wp_enqueue_script( 'twentytwelve-navigation', get_template_directory_uri() . '/js/navigation.js', array( 'jquery' ), '20140608', true );
 
 	$font_url = twentytwelve_get_font_url();
 	if ( ! empty( $font_url ) )