diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e563e0e6..b1213826 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -40,7 +40,7 @@ jobs:
     timeout-minutes: 60
     strategy:
       matrix:
-        java: [ '17' ]
+        java: [ '21' ]
         os: [ ubuntu-latest ]
       fail-fast: false
     runs-on: ${{ matrix.os }}