diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 98e8d9e..c1aead7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,11 +13,11 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: '17'
+          java-version: '21'
 
       - name: Setup Android SDK
         uses: android-actions/setup-android@v3
diff --git a/gradlew b/gradlew
old mode 100644
new mode 100755