diff --git a/Jenkinsfile b/Jenkinsfile
index 64d6576..b7ab4b7 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,7 +1,7 @@
 pipeline {
     agent any
     tools {
-        maven 'apache-maven-3.6.0'
+        maven 'apache-maven-3.8.4'
     }
     stages {
         stage('Build and Test')  {
diff --git a/sci-types-project/src/main/resources/META-INF/persistence-ddl.xml b/sci-types-project/src/main/resources/META-INF/persistence-ddl.xml
index e6cf53e..b82501a 100644
--- a/sci-types-project/src/main/resources/META-INF/persistence-ddl.xml
+++ b/sci-types-project/src/main/resources/META-INF/persistence-ddl.xml
@@ -34,6 +34,7 @@
             -->
             <property name="org.hibernate.envers.audit_strategy" 
                       value="org.hibernate.envers.strategy.ValidityAuditStrategy"/>
+        
         </properties>
 
     </persistence-unit>