diff --git a/src/test/java/hudson/security/docker/MultiServerTest.java b/src/test/java/hudson/security/docker/MultiServerTest.java
index 0d7cebad..8f0b9f18 100644
--- a/src/test/java/hudson/security/docker/MultiServerTest.java
+++ b/src/test/java/hudson/security/docker/MultiServerTest.java
@@ -38,7 +38,7 @@ public class MultiServerTest {
 
     @SuppressWarnings("rawtypes")
     @Rule
-    public GenericContainer container = new GenericContainer(PlanetExpressTest.TEST_IMAGE).withExposedPorts(389);
+    public GenericContainer container = new GenericContainer(PlanetExpressTest.TEST_IMAGE).withExposedPorts(10389);
 
     public JenkinsRule j = new JenkinsRule();
     public LDAPRule ads = new LDAPRule();
diff --git a/src/test/java/hudson/security/docker/PlanetExpressTest.java b/src/test/java/hudson/security/docker/PlanetExpressTest.java
index 202b190e..387d7c9d 100644
--- a/src/test/java/hudson/security/docker/PlanetExpressTest.java
+++ b/src/test/java/hudson/security/docker/PlanetExpressTest.java
@@ -40,7 +40,7 @@ public class PlanetExpressTest {
 
     @SuppressWarnings("rawtypes")
     @Rule
-    public GenericContainer container = new GenericContainer(TEST_IMAGE).withExposedPorts(389);
+    public GenericContainer container = new GenericContainer(TEST_IMAGE).withExposedPorts(10389);
 
     @Rule
     public RealJenkinsRule rr = new RealJenkinsRule();