diff --git a/readme.txt b/readme.txt
index 4f210a617..96e51fd66 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,6 +1,6 @@
 === Twenty Twelve ===
 Contributors: wordpressdotorg
-Tested up to: 5.0
+Tested up to: 5.5
 Stable tag: 3.1
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html