diff --git a/instrumentation/kamon-apache-cxf/src/test/scala/kamon/instrumentation/apache/cxf/client/MessageSpec.scala b/instrumentation/kamon-apache-cxf/src/test/scala/kamon/instrumentation/apache/cxf/client/MessageSpec.scala
index 9ddf9c379..613a64ef8 100644
--- a/instrumentation/kamon-apache-cxf/src/test/scala/kamon/instrumentation/apache/cxf/client/MessageSpec.scala
+++ b/instrumentation/kamon-apache-cxf/src/test/scala/kamon/instrumentation/apache/cxf/client/MessageSpec.scala
@@ -91,7 +91,8 @@ class MessageSpec
   }
 
   override val container: MockServerContainer = MockServerContainer()
-  lazy val clientExpectation: MockServerExpectations = new MockServerExpectations("localhost", container.serverPort)
+  lazy val clientExpectation: MockServerExpectations =
+    new MockServerExpectations(container.container.getHost, container.serverPort)
 
   override protected def beforeAll(): Unit = {
     super.beforeAll()
diff --git a/instrumentation/kamon-apache-httpclient/src/test/scala/kamon/instrumentation/apache/httpclient/HttpRequestSpec.scala b/instrumentation/kamon-apache-httpclient/src/test/scala/kamon/instrumentation/apache/httpclient/HttpRequestSpec.scala
index 729d65e58..3a221deb6 100644
--- a/instrumentation/kamon-apache-httpclient/src/test/scala/kamon/instrumentation/apache/httpclient/HttpRequestSpec.scala
+++ b/instrumentation/kamon-apache-httpclient/src/test/scala/kamon/instrumentation/apache/httpclient/HttpRequestSpec.scala
@@ -161,7 +161,8 @@ class HttpRequestSpec
   }
 
   override val container: MockServerContainer = MockServerContainer()
-  lazy val clientExpectation: MockServerExpectations = new MockServerExpectations("localhost", container.serverPort)
+  lazy val clientExpectation: MockServerExpectations =
+    new MockServerExpectations(container.container.getHost, container.serverPort)
 
   override protected def beforeAll(): Unit = {
     super.beforeAll()
diff --git a/instrumentation/kamon-apache-httpclient/src/test/scala/kamon/instrumentation/apache/httpclient/HttpUriRequestSpec.scala b/instrumentation/kamon-apache-httpclient/src/test/scala/kamon/instrumentation/apache/httpclient/HttpUriRequestSpec.scala
index 1eadbed25..a0daa250d 100644
--- a/instrumentation/kamon-apache-httpclient/src/test/scala/kamon/instrumentation/apache/httpclient/HttpUriRequestSpec.scala
+++ b/instrumentation/kamon-apache-httpclient/src/test/scala/kamon/instrumentation/apache/httpclient/HttpUriRequestSpec.scala
@@ -156,7 +156,8 @@ class HttpUriRequestSpec
   }
 
   override val container: MockServerContainer = MockServerContainer()
-  lazy val clientExpectation: MockServerExpectations = new MockServerExpectations("localhost", container.serverPort)
+  lazy val clientExpectation: MockServerExpectations =
+    new MockServerExpectations(container.container.getHost, container.serverPort)
 
   override protected def beforeAll(): Unit = {
     super.beforeAll()