diff --git a/Jenkinsfile.groovy b/Jenkinsfile.groovy
index c6835c4..e61c0ee 100644
--- a/Jenkinsfile.groovy
+++ b/Jenkinsfile.groovy
@@ -1,5 +1,5 @@
 final String mvn = "mvn --batch-mode --update-snapshots --errors"
-final dependenciesSupportJDK = 10
+final Integer dependenciesSupportJDK = 10
 
 pipeline {
     agent any