diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index edfdbd3..488b8ef 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,7 +8,7 @@
     timeout-minutes: 30
     strategy:
       matrix:
-        java: [11, 17]
+        java: [11, 21]
     steps:
     - uses: actions/checkout@v4
     - name: Cache