diff --git a/log4j2-appender/src/test/java/pl/tkowalcz/tjahzi/log4j2/labels/LabelsContextSubstitutionTest.java b/log4j2-appender/src/test/java/pl/tkowalcz/tjahzi/log4j2/labels/LabelsContextSubstitutionTest.java
index d08ff1f..53d3f4e 100644
--- a/log4j2-appender/src/test/java/pl/tkowalcz/tjahzi/log4j2/labels/LabelsContextSubstitutionTest.java
+++ b/log4j2-appender/src/test/java/pl/tkowalcz/tjahzi/log4j2/labels/LabelsContextSubstitutionTest.java
@@ -7,7 +7,7 @@
 import pl.tkowalcz.tjahzi.log4j2.infra.IntegrationTest;
 
 import static org.hamcrest.CoreMatchers.equalTo;
-import static org.hamcrest.Matchers.contains;
+import static org.hamcrest.Matchers.containsInAnyOrder;
 import static org.hamcrest.Matchers.hasItems;
 import static org.hamcrest.core.Every.everyItem;
 import static pl.tkowalcz.tjahzi.log4j2.infra.LokiAssert.assertThat;
@@ -38,9 +38,9 @@ void shouldSendData() {
                 .returns(response -> response
                         .body("data.result.size()", equalTo(3))
                         .body("data.result.stream.server", everyItem(equalTo("127.0.0.1")))
-                        .body("data.result.stream.object", contains("prefix_", "prefix_bus_ticket", "prefix_comb"))
-                        .body("data.result.stream.owner", contains("_suffix", "wally_suffix", "jennifer_suffix"))
-                        .body("data.result.stream.default_value_test", contains("use_this_if_missing", "use_this_if_missing", "use_this_if_missing"))
+                        .body("data.result.stream.object", containsInAnyOrder("prefix_", "prefix_bus_ticket", "prefix_comb"))
+                        .body("data.result.stream.owner", containsInAnyOrder("_suffix", "wally_suffix", "jennifer_suffix"))
+                        .body("data.result.stream.default_value_test", containsInAnyOrder("use_this_if_missing", "use_this_if_missing", "use_this_if_missing"))
                         .body("data.result.values",
                                 hasItems(
                                         hasItems(hasItems("LabelsContextSubstitutionTest - Test3")),
diff --git a/log4j2-appender/src/test/java/pl/tkowalcz/tjahzi/log4j2/labels/Log4jPatternsInLabelsTest.java b/log4j2-appender/src/test/java/pl/tkowalcz/tjahzi/log4j2/labels/Log4jPatternsInLabelsTest.java
index 44c0be4..2254791 100644
--- a/log4j2-appender/src/test/java/pl/tkowalcz/tjahzi/log4j2/labels/Log4jPatternsInLabelsTest.java
+++ b/log4j2-appender/src/test/java/pl/tkowalcz/tjahzi/log4j2/labels/Log4jPatternsInLabelsTest.java
@@ -35,7 +35,7 @@ void shouldSendData() {
                         .body("data.result.stream.server", everyItem(equalTo("127.0.0.1")))
                         .body("data.result.stream.class_pattern", everyItem(equalTo("p.t.t.l.l.Log4jPatternsInLabelsTest")))
                         .body("data.result.stream.sequence_number", contains("2", "1"))
-                        .body("data.result.stream.mdc_tid", contains("", "req-230rq9ubou"))
+                        .body("data.result.stream.mdc_tid", contains(null, "req-230rq9ubou"))
                         .body("data.result.values",
                                 hasItems(
                                         hasItems(hasItems("Log4jPatternsInLabelsTest - Test2")),