diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/src/test/java/integration/MessagingApplicationTests.java b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/src/test/java/integration/MessagingApplicationTests.java
index 82b99b2b3..9a7d5f530 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/src/test/java/integration/MessagingApplicationTests.java
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/src/test/java/integration/MessagingApplicationTests.java
@@ -44,7 +44,7 @@ import static org.assertj.core.api.BDDAssertions.then;
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = { IntegrationSpanCollectorConfig.class, SampleMessagingApplication.class },
 		properties="sample.zipkin.enabled=true",
-		webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+		webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)
 @DirtiesContext
 public class MessagingApplicationTests extends AbstractIntegrationTest {
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin/src/test/java/integration/ZipkinTests.java b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin/src/test/java/integration/ZipkinTests.java
index fc2a2fb05..9becc626c 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin/src/test/java/integration/ZipkinTests.java
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin/src/test/java/integration/ZipkinTests.java
@@ -42,7 +42,7 @@ import zipkin.server.EnableZipkinServer;
 @SpringBootTest(classes = { WaitUntilZipkinIsUpConfig.class,
 		SampleZipkinApplication.class },
 		properties = {"sample.zipkin.enabled=true"},
-		webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+		webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)
 public class ZipkinTests extends AbstractIntegrationTest {
 
 	@ClassRule public static final ZipkinRule zipkin = new ZipkinRule();