diff --git a/jkube-kit/enricher/api/src/test/java/org/eclipse/jkube/kit/enricher/api/util/KubernetesResourceUtilTest.java b/jkube-kit/enricher/api/src/test/java/org/eclipse/jkube/kit/enricher/api/util/KubernetesResourceUtilTest.java
index 5a42183664..e58c060dc4 100644
--- a/jkube-kit/enricher/api/src/test/java/org/eclipse/jkube/kit/enricher/api/util/KubernetesResourceUtilTest.java
+++ b/jkube-kit/enricher/api/src/test/java/org/eclipse/jkube/kit/enricher/api/util/KubernetesResourceUtilTest.java
@@ -166,7 +166,7 @@ void mergePodSpec_withFragmentWithNoContainerNameAndSidecarDisabled_shouldGetCon
         .hasFieldOrPropertyWithValue("resources.requests.memory.amount", "256")
         .hasFieldOrPropertyWithValue("resources.limits.cpu.amount", "1.0")
         .hasFieldOrPropertyWithValue("resources.limits.memory.amount", "512")
-        .extracting("ports").asList().extracting("containerPort")
+        .extracting("ports").asInstanceOf(InstanceOfAssertFactories.list(ContainerPort.class)).extracting("containerPort")
         .containsExactly(8080, 9779, 8778);
   }
 
@@ -300,7 +300,7 @@ void mergeResources_whenDeploymentProvidedAndFirstDeploymentWithEmptySpec_thenSh
           .extracting(DeploymentSpec::getTemplate)
           .extracting(PodTemplateSpec::getSpec)
           .extracting(PodSpec::getContainers)
-          .asList()
+          .asInstanceOf(InstanceOfAssertFactories.list(Container.class))
           .singleElement(InstanceOfAssertFactories.type(Container.class))
           .hasFieldOrPropertyWithValue("env", Collections.singletonList(new EnvVarBuilder().withName("E1").withValue("V1").build()))
           .hasFieldOrPropertyWithValue("name", "foo");
@@ -338,7 +338,7 @@ void mergeResources_whenDeploymentProvidedAndSecondDeploymentWithEmptySpec_thenS
           .extracting(DeploymentSpec::getTemplate)
           .extracting(PodTemplateSpec::getSpec)
           .extracting(PodSpec::getContainers)
-          .asList()
+          .asInstanceOf(InstanceOfAssertFactories.list(Container.class))
           .singleElement(InstanceOfAssertFactories.type(Container.class))
           .hasFieldOrPropertyWithValue("name", "foo");
     }
@@ -393,7 +393,7 @@ void mergeResources_whenBothDeploymentNonEmptySpec_thenShouldMergeBothObjects()
           .extracting(DeploymentSpec::getTemplate)
           .extracting(PodTemplateSpec::getSpec)
           .extracting(PodSpec::getContainers)
-          .asList()
+          .asInstanceOf(InstanceOfAssertFactories.list(Container.class))
           .singleElement(InstanceOfAssertFactories.type(Container.class))
           .hasFieldOrPropertyWithValue("name", "c1");
     }
@@ -486,7 +486,7 @@ void mergeResources_whenPodsProvided_thenMergeBothPodMetadataOnly() {
           .hasFieldOrPropertyWithValue("metadata.labels.l2", "v2")
           .extracting(Pod::getSpec)
           .extracting(PodSpec::getContainers)
-          .asList()
+          .asInstanceOf(InstanceOfAssertFactories.list(Container.class))
           .singleElement(InstanceOfAssertFactories.type(Container.class))
           .hasFieldOrPropertyWithValue("name", "c1")
           .hasFieldOrPropertyWithValue("image", "image1:latest");