diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index fcc5e81..5572f8e 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -18,7 +18,7 @@ jobs:
     - name: Set up JDK
       uses: actions/setup-java@v3
       with:
-        java-version: '21'
+        java-version: '20'
         distribution: 'temurin'
     - name: Grant gradlew Execute permission
       run: chmod +x gradlew