diff --git a/Jenkinsfile b/Jenkinsfile
index 8ec2e6f..34ac74a 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,5 +1,8 @@
 pipeline {
     agent any
+    tools {
+        jdk 'JDK 21.0.3'
+    }
     stages {
         stage("build") {
             steps {