diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index 561fa46..d3c03f8 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -14,7 +14,7 @@ jobs:
       - uses: actions/setup-java@v4
         with:
           distribution: temurin
-          java-version: '8'
+          java-version: '21'
           cache: maven
 
       - uses: stCarolas/setup-maven@v5
@@ -59,7 +59,7 @@ jobs:
         env:
           PACKAGE_TOKEN: ${{ secrets.PACKAGE_TOKEN }}
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v3
         with:
           name: SMPCore-jar
           path: target/*.jar