diff --git a/.github/workflows/upgrade-testing.yml b/.github/workflows/upgrade-testing.yml
index 18a45d4bd6..ccf27706e2 100644
--- a/.github/workflows/upgrade-testing.yml
+++ b/.github/workflows/upgrade-testing.yml
@@ -46,7 +46,7 @@ jobs:
         php: [ '7.0', '7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3' ]
         db-type: [ 'mysql' ]
         db-version: [ '5.7', '8.0' ]
-        wp: [ '6.0', '6.1', '6.2' ]
+        wp: [ '6.0', '6.1', '6.2', '6.3' ]
         multisite: [ false, true ]
     with:
       os: ${{ matrix.os }}