diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index dd84681ba7c..ef5780e00bd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -28,7 +28,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java: [ 8, 17 ]
+        java: [ 8, 17, 21 ]
     steps:
       # step 1
       - name: "Checkout"