diff --git a/readme.txt b/readme.txt
index 28e6da7..10c0ac8 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,7 +1,7 @@
 === Ads.txt Manager ===
 Contributors:      10up, helen, adamsilverstein, jakemgold, peterwilsoncc, jeffpaul
 Tags:              ads.txt, app-ads.txt, ads, ad manager, advertising
-Tested up to:      6.5
+Tested up to:      6.6
 Stable tag:        1.4.4
 License:           GPL-2.0-or-later
 License URI:       https://spdx.org/licenses/GPL-2.0-or-later.html