diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9d01cf1..ce269ce 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,11 +7,11 @@ jobs:
       matrix:
         include:
           - php: '8.3'
-            wordpress: '6.4'
+            wordpress: '6.6'
           - php: '8.2'
-            wordpress: '6.3'
+            wordpress: '6.4'
           - php: '8.1'
-            wordpress: '6.1'
+            wordpress: '6.2'
           - php: '8.0'
             wordpress: '6.0'
           - php: '7.4'
diff --git a/README.md b/README.md
index 3591260..a3ef253 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 * Contributors:      Stefan Kalscheuer
 * Tags:              liveticker, feed, rss
 * Requires at least: 5.0
-* Tested up to:      6.4
+* Tested up to:      6.6
 * Requires PHP:      7.2
 * Stable tag:        1.2.2
 * License:           GPLv2 or later