diff --git src/wp-includes/comment.php src/wp-includes/comment.php
index d00eb77..cef4884 100644
--- src/wp-includes/comment.php
+++ src/wp-includes/comment.php
@@ -2023,6 +2023,10 @@ function wp_update_comment($commentarr) {
 	$data = wp_array_slice_assoc( $data, $keys );
 	$rval = $wpdb->update( $wpdb->comments, $data, compact( 'comment_ID' ) );
 
+	// Add Last Modified Data to Comment Meta
+	update_comment_meta( $comment_id, 'comment_modified', current_time( 'mysql' ) );
+	update_comment_meta( $comment_id, 'comment_modified_gmt', current_time( 'mysql', 1 ) );
+
 	clean_comment_cache( $comment_ID );
 	wp_update_comment_count( $comment_post_ID );
 	/**