diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2a5a385..a6d75d5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,7 +18,7 @@ jobs:
       - uses: actions/setup-java@v4
         with:
           distribution: 'zulu'
-          java-version: 17
+          java-version: 21
 
       - run: ./gradlew build javadoc