diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2bdd3dfa..247818a5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ '8', '11', '16' ]
+        java: [ '8', '11', '15', '16' ]
       fail-fast: false
     steps:
     - uses: actions/checkout@v2