diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index c0190ee1..3dbe4eae 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -10,7 +10,7 @@ jobs:
   Build:
     strategy:
       matrix:
-        jdkversion: [ 17 ]
+        jdkversion: [ 17, 21 ]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -37,8 +37,8 @@ jobs:
             javaVersion: '8'
           - mcVersion: '1.12.2'
             javaVersion: '8'
-          - mcVersion: '1.20.2'
-            javaVersion: '20'   
+          - mcVersion: '1.20.4'
+            javaVersion: '21'   
     steps:        
       - uses: HaHaWTH/minecraft-plugin-runtime-test@paper
         with: