diff --git a/.gitea/workflows/test.yml b/.gitea/workflows/test.yml
index b00e3cc..3e61fc0 100644
--- a/.gitea/workflows/test.yml
+++ b/.gitea/workflows/test.yml
@@ -109,13 +109,26 @@ jobs:
           fi
         shell: bash
 
+      - name: Install OpenJDK 21
+        run: |
+          # Ensure apt and necessary tools are available
+          apt-get update -y
+          apt-get install -y apt-transport-https ca-certificates curl gnupg wget software-properties-common
+
+          # Download and install OpenJDK 21 (Oracle version)
+          wget https://download.oracle.com/java/21/latest/jdk-21_linux-x64_bin.deb
+
+          # Install the downloaded package
+          apt install -y ./jdk-21_linux-x64_bin.deb
+
+          # Verify installation
+          java -version
+
       - uses: actions/checkout@v5
       - name: Set up JDK 21 for x64
         uses: actions/setup-java@v4
         with:
           java-version: '21'
-          #distribution: 'oracle'
-          distribution: 'corretto'
           #distribution: 'temurin'
           architecture: x64
           cache: maven