diff --git a/.github/workflows/build-doc.yaml b/.github/workflows/build-doc.yaml
index 9e53a3eb..6f4c3037 100644
--- a/.github/workflows/build-doc.yaml
+++ b/.github/workflows/build-doc.yaml
@@ -11,10 +11,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - name: Set up JDK 8
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: '8'
+          java-version: '21'
           distribution: 'corretto'
 
       - name: Create javadoc