diff --git a/dockerizeit/master/credentials.groovy b/dockerizeit/master/credentials.groovy
index 3c3f714..63f9228 100644
--- a/dockerizeit/master/credentials.groovy
+++ b/dockerizeit/master/credentials.groovy
@@ -2,19 +2,12 @@ import java.lang.System
 import jenkins.*
 import hudson.model.*
 import jenkins.model.*
-// Plugins for SSH credentials
-import com.cloudbees.plugins.credentials.*
-import com.cloudbees.plugins.credentials.common.*
-import com.cloudbees.plugins.credentials.domains.*
-import com.cloudbees.plugins.credentials.impl.*
-import com.cloudbees.jenkins.plugins.sshcredentials.impl.*
-import hudson.plugins.sshslaves.*
 
 // Read properties
 def home_dir = System.getenv("JENKINS_HOME")
 def properties = new ConfigSlurper().parse(new File("$home_dir/jenkins.properties").toURI().toURL())
 
-global_domain = Domain.global()
+global_domain = com.cloudbees.plugins.credentials.domains.Domain.global()
 credentials_store = Jenkins.instance.getExtensionList('com.cloudbees.plugins.credentials.SystemCredentialsProvider')[0].getStore()
 
 properties.credentials.each {
@@ -24,17 +17,17 @@ properties.credentials.each {
   switch (it.value.type) {
     case "ssh":
       println "--> Create ssh credentials for user ${it.value.userId} with SSH private key ${it.value.path}"
-      creds = new BasicSSHUserPrivateKey(CredentialsScope.GLOBAL,
+      creds = new com.cloudbees.jenkins.plugins.sshcredentials.impl.BasicSSHUserPrivateKey(com.cloudbees.plugins.credentials.CredentialsScope.GLOBAL,
                                          it.value.credentialsId,
                                          it.value.userId,
-                                         new BasicSSHUserPrivateKey.FileOnMasterPrivateKeySource(it.value.path),
+                                         new com.cloudbees.jenkins.plugins.sshcredentials.impl.BasicSSHUserPrivateKey.FileOnMasterPrivateKeySource(it.value.path),
                                          it.value.passphrase,
                                          it.value.description)
       credentials_store.addCredentials(global_domain, creds)
       break
     case "password":
       println "--> Create credentials for user ${it.value.userId} with the password from ${it.value.path}"
-      creds = new UsernamePasswordCredentialsImpl(CredentialsScope.GLOBAL,
+      creds = new com.cloudbees.plugins.credentials.impl.UsernamePasswordCredentialsImpl(com.cloudbees.plugins.credentials.CredentialsScope.GLOBAL,
                                                   it.value.credentialsId,
                                                   it.value.description,
                                                   it.value.userId,
diff --git a/dockerizeit/master/initialjobs.groovy b/dockerizeit/master/initialjobs.groovy
index 057ecbe..98b595e 100644
--- a/dockerizeit/master/initialjobs.groovy
+++ b/dockerizeit/master/initialjobs.groovy
@@ -3,8 +3,6 @@ import hudson.model.*
 import jenkins.model.*
 import javaposse.jobdsl.plugin.*
 import hudson.triggers.TimerTrigger
-import org.jenkinsci.plugins.workflow.job.WorkflowJob
-import org.jenkinsci.plugins.workflow.cps.CpsFlowDefinition
 
 def instance = Jenkins.getInstance()
 def home_dir = System.getenv("JENKINS_HOME")
@@ -17,8 +15,8 @@ properties.seedjobs.each {
   def job = Jenkins.instance.getJob(it.value.name)
   if (job) { job.delete() }
   println "--> Create ${it.value.name} seed jod"
-  def project = Jenkins.instance.createProject(WorkflowJob.class, it.value.name)
-  project.setDefinition(new CpsFlowDefinition("""
+  def project = Jenkins.instance.createProject(org.jenkinsci.plugins.workflow.job.WorkflowJob.class, it.value.name)
+  project.setDefinition(new org.jenkinsci.plugins.workflow.cps.CpsFlowDefinition("""
 import javaposse.jobdsl.plugin.*
 
 node("${properties.global.variables.utility_slave}") {
diff --git a/dockerizeit/master/securityAD.groovy b/dockerizeit/master/securityAD.groovy
index ed8871f..953b409 100644
--- a/dockerizeit/master/securityAD.groovy
+++ b/dockerizeit/master/securityAD.groovy
@@ -1,6 +1,5 @@
 import java.lang.System
 import jenkins.model.*
-import hudson.plugins.active_directory.*
 import com.google.common.collect.Lists
 
 def home_dir = System.getenv("JENKINS_HOME")
@@ -9,15 +8,15 @@ def properties = new ConfigSlurper().parse(new File("$home_dir/security.properti
 if(properties.ad.enabled) {
   println "--> Configure AD"
   def realm = new hudson.plugins.active_directory.ActiveDirectorySecurityRealm(properties.ad.domain,
-                                                                        Lists.newArrayList(new ActiveDirectoryDomain(properties.ad.domain, properties.ad.server)),
+                                                                        Lists.newArrayList(new hudson.plugins.active_directory.ActiveDirectoryDomain(properties.ad.domain, properties.ad.server)),
                                                                         properties.ad.site,
                                                                         properties.ad.bindName,
                                                                         properties.ad.bindPassword,
                                                                         properties.ad.server,
-                                                                        GroupLookupStrategy.valueOf(properties.ad.groupLookupStrategy.toString().toUpperCase()),
+                                                                        hudson.plugins.active_directory.GroupLookupStrategy.valueOf(properties.ad.groupLookupStrategy.toString().toUpperCase()),
 									true,
 									true,
-									new CacheConfiguration(1000, 6000))
+									new hudson.plugins.active_directory.CacheConfiguration(1000, 6000))
   Jenkins.instance.setSecurityRealm(realm)
   Jenkins.instance.save()
 }
diff --git a/dockerizeit/master/slaves.groovy b/dockerizeit/master/slaves.groovy
index 3e60823..05a5672 100644
--- a/dockerizeit/master/slaves.groovy
+++ b/dockerizeit/master/slaves.groovy
@@ -2,7 +2,6 @@ import java.lang.System
 import hudson.model.*
 import jenkins.model.*
 import hudson.slaves.*
-import hudson.plugins.sshslaves.*
 import hudson.model.Node.*
 
 // load helpers and read properties
@@ -21,7 +20,7 @@ properties.slaves.each {
         launcher = new JNLPLauncher()
       break
     case "ssh":
-        launcher = new SSHLauncher(it.value.host,                 // The host to connect to
+        launcher = new hudson.plugins.sshslaves.SSHLauncher(it.value.host,                 // The host to connect to
                                    it.value.get('port', 22),      // The port to connect on
                                    it.value.credentialsId,        // The credentials id to connect as
                                    it.value.get('jvmOptions',""),  // Options passed to the java vm