diff --git a/.github/workflows/dailyclean-docker-images.yml b/.github/workflows/dailyclean-docker-images.yml
index 6550d06..b0185f1 100644
--- a/.github/workflows/dailyclean-docker-images.yml
+++ b/.github/workflows/dailyclean-docker-images.yml
@@ -17,10 +17,10 @@ jobs:
         with:
           fetch-depth: 0 
           
-      - name: Set up JDK 20
+      - name: Set up JDK 21
         uses: actions/setup-java@v2
         with:
-          java-version: '20'
+          java-version: '21'
           distribution: 'adopt'
           cache: maven
       - name: Build with Maven