diff --git a/src/test/java/snippets/SnippetsTests.java b/src/test/java/snippets/SnippetsTests.java
index c215ad7..a5a4f37 100644
--- a/src/test/java/snippets/SnippetsTests.java
+++ b/src/test/java/snippets/SnippetsTests.java
@@ -409,7 +409,7 @@ public void union_test() throws Exception {
                 new Integer[]{1, 2, 4}
         );
 
-        assertThat(union).isEqualTo(new Integer[]{1, 2, 3, 4});
+        assertThat(union).containsExactlyInAnyOrder(new Integer[]{1, 2, 3, 4});
     }
 
     @Test