diff --git a/README.md b/README.md
index 1d22406..5e82220 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 * Contributors:      Stefan Kalscheuer
 * Tags:              liveticker, feed, rss
 * Requires at least: 4.7
-* Tested up to:      5.8
+* Tested up to:      5.9
 * Requires PHP:      5.6
 * Stable tag:        1.2.0
 * License:           GPLv2 or later