diff --git a/content/versions.yml b/content/versions.yml
index 418ed9c44bf..6bae2c52b9c 100644
--- a/content/versions.yml
+++ b/content/versions.yml
@@ -1,4 +1,8 @@
+- title: '16.4'
+  changelog: https://github.com/facebook/react/blob/master/CHANGELOG.md#1640-may-23-2018
 - title: '16.3'
+  path: /version/16.3
+  url: https://5b05c94e0733d530fd1fafe0--reactjs.netlify.com
   changelog: https://github.com/facebook/react/blob/master/CHANGELOG.md#1632-april-16-2018
 - title: '16.2'
   path: /version/16.2
diff --git a/src/site-constants.js b/src/site-constants.js
index 9e70564cd7e..7bd6ad02371 100644
--- a/src/site-constants.js
+++ b/src/site-constants.js
@@ -8,7 +8,7 @@
 // NOTE: We can't just use `location.toString()` because when we are rendering
 // the SSR part in node.js we won't have a proper location.
 const urlRoot = 'https://reactjs.org';
-const version = '16.3.2';
+const version = '16.4.0';
 const babelURL = '//unpkg.com/babel-standalone@6.26.0/babel.min.js';
 
 export {urlRoot, version, babelURL};