diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index 1f1ad353..5548372e 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -32,7 +32,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           java-version: |
-            25
+            21
           distribution: 'temurin'
           cache: gradle