diff --git a/composer.lock b/composer.lock
index 471e5e60..64116f5b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1947,15 +1947,15 @@
         },
         {
             "name": "wpackagist-plugin/wordpress-seo",
-            "version": "21.5",
+            "version": "21.6",
             "source": {
                 "type": "svn",
                 "url": "https://plugins.svn.wordpress.org/wordpress-seo/",
-                "reference": "tags/21.5"
+                "reference": "tags/21.6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://downloads.wordpress.org/plugin/wordpress-seo.21.5.zip"
+                "url": "https://downloads.wordpress.org/plugin/wordpress-seo.21.6.zip"
             },
             "require": {
                 "composer/installers": "^1.0 || ^2.0"