diff --git a/src/test/java/com/bytelegend/ChallengeTest.java b/src/test/java/com/bytelegend/ChallengeTest.java
index f40b10c..93b3642 100644
--- a/src/test/java/com/bytelegend/ChallengeTest.java
+++ b/src/test/java/com/bytelegend/ChallengeTest.java
@@ -14,9 +14,10 @@ public void test(CaptureSystemOutput.OutputCapture capture) {
         Fish fish = new Fish("Fish");
         Dog dog1 = new Dog("Dog" + new Random().nextInt());
         Dog dog2 = new Dog("Dog" + new Random().nextInt());
+        String regex = dog1.getName() + " is walking\\s+" + dog2.getName() + " is walking\\s+";
         capture.expect(
-                Matchers.containsString(
-                        dog1.getName() + " is walking\n" + dog2.getName() + " is walking\n"));
+                Matchers.matchesPattern(
+                        regex));
 
         Challenge.allDogsWalk(dog1, fish, dog2);
     }