diff --git a/src/test/java/com/hubsante/model/edxlhandler/EdxlHandlerTest.java b/src/test/java/com/hubsante/model/edxlhandler/EdxlHandlerTest.java
index 814b5d3b4..904a9ee11 100644
--- a/src/test/java/com/hubsante/model/edxlhandler/EdxlHandlerTest.java
+++ b/src/test/java/com/hubsante/model/edxlhandler/EdxlHandlerTest.java
@@ -192,7 +192,7 @@ public void deserializationOfMessageWithUnknownPropertyNotAtRootLevelFails() thr
 
     @Test
     @DisplayName("all json example files deserialize to same object xml example files deserialize to")
-    public void jsonAndXmlExampleFilesDeserializeToSameObject() {
+    void jsonAndXmlExampleFilesDeserializeToSameObject() {
         String rootFolder = TestMessagesHelper.class.getClassLoader().getResource("sample/examples").getFile();
 
         File[] subFolders = new File(rootFolder).listFiles(File::isDirectory);
@@ -239,7 +239,7 @@ public void jsonAndXmlExampleFilesDeserializeToSameObject() {
 
     @Test
     @DisplayName("serialized Xml EdxlMessages should contain xlink type")
-    public void serializedXmlEdxlMessagesShouldContainXlinkType() throws IOException {
+    void serializedXmlEdxlMessagesShouldContainXlinkType() throws IOException {
         File jsonMessage = new File(TestMessagesHelper.class.getClassLoader().getResource("sample/valid/RC-EDA/RC-EDA.json").getFile());
         String json = new String(Files.readAllBytes(jsonMessage.toPath()), StandardCharsets.UTF_8);
         EdxlMessage message = converter.deserializeJsonEDXL(json);
diff --git a/src/test/java/com/hubsante/model/validator/EnvelopeValidatorTest.java b/src/test/java/com/hubsante/model/validator/EnvelopeValidatorTest.java
index ac0916b2c..a201952a5 100644
--- a/src/test/java/com/hubsante/model/validator/EnvelopeValidatorTest.java
+++ b/src/test/java/com/hubsante/model/validator/EnvelopeValidatorTest.java
@@ -39,7 +39,7 @@ public class EnvelopeValidatorTest extends AbstractValidatorTest{
 
     @Test
     @DisplayName("check EDXL envelope schemas availability")
-    public void checkEdxlEnvelopeSchemasAvailability() {
+    void checkEdxlEnvelopeSchemasAvailability() {
         assertDoesNotThrow(() -> new File(Thread.currentThread().getContextClassLoader()
                 .getResource("json-schema/" + ENVELOPE_SCHEMA).getFile()));
 
diff --git a/src/test/java/com/hubsante/model/validator/UseCaseValidatorTest.java b/src/test/java/com/hubsante/model/validator/UseCaseValidatorTest.java
index c509cb247..026eb5668 100644
--- a/src/test/java/com/hubsante/model/validator/UseCaseValidatorTest.java
+++ b/src/test/java/com/hubsante/model/validator/UseCaseValidatorTest.java
@@ -37,11 +37,11 @@
 import static org.junit.jupiter.api.Assertions.fail;
 
 @Slf4j
-public class UseCaseValidatorTest extends AbstractValidatorTest {
+class UseCaseValidatorTest extends AbstractValidatorTest {
 
     @Test
     @DisplayName("all examples files passing")
-    public void examplesBundlePassingTest() {
+    void examplesBundlePassingTest() {
         String rootFolder = TestMessagesHelper.class.getClassLoader().getResource("sample/examples").getFile();
         File[] subFolders = new File(rootFolder).listFiles(File::isDirectory);
         assert subFolders != null;