diff --git a/postdoc.config.js b/postdoc.config.js
index e438022..fe72adf 100644
--- a/postdoc.config.js
+++ b/postdoc.config.js
@@ -2,7 +2,7 @@ import {env} from 'node:process';
 import {sep, join, basename, resolve, extname} from 'node:path';
 
 const {
-  NIGHTWATCH_VERSION = '3.8.1',
+  NIGHTWATCH_VERSION = '3.9.0',
   BASE_URL = 'https://nightwatchjs.org',
   MD_DOCS_FOLDER =  './docs',
   API_DOCS_FOLDER = resolve('../nightwatch/lib/api'),