diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 40b4c8a1..ba661e60 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.8', '3.12']
-        java: [11, 13]
+        java: [11, 21]
         os: ['ubuntu-latest', 'macos-13', 'windows-latest']
         terrier: ['snapshot'] #'5.3', '5.4-SNAPSHOT', 
         # include: