diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index b175a64..dd9d072 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -18,10 +18,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - name: Set up JDK 16
+      - name: Set up JDK 21
         uses: actions/setup-java@v2
         with:
-          java-version: '16'
+          java-version: '21'
           distribution: 'adopt'
           cache: gradle
       - name: Grant execute permission for gradlew