diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index 963816ad..5b691151 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ '11', '17', '20' ]
+        java: [ '11', '17', '21', '23' ]
 
     steps:
     - uses: actions/checkout@v2