diff --git a/readme.txt b/readme.txt
index 9739b9f..b0deac2 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,7 +1,7 @@
 === Yoast Test Helper ===
 Contributors: yoast, joostdevalk, omarreiss, jipmoors, herregroen
 Tags: Yoast, Yoast SEO, development
-Requires at least: 6.3
+Requires at least: 6.4
 Tested up to: 6.5
 Stable tag: 1.18
 Requires PHP: 7.2.5
diff --git a/yoast-test-helper.php b/yoast-test-helper.php
index e16a7bc..f385b61 100644
--- a/yoast-test-helper.php
+++ b/yoast-test-helper.php
@@ -16,7 +16,7 @@
  * Text Domain: yoast-test-helper
  * Domain Path: /languages/
  * License:     GPL v3
- * Requires at least: 6.3
+ * Requires at least: 6.4
  * Requires PHP: 7.2.5
  *
  * This program is free software: you can redistribute it and/or modify