diff --git a/samples/default-authorizationserver/samples-default-authorizationserver.gradle b/samples/default-authorizationserver/samples-default-authorizationserver.gradle
index 3dea316f..e84b55ea 100644
--- a/samples/default-authorizationserver/samples-default-authorizationserver.gradle
+++ b/samples/default-authorizationserver/samples-default-authorizationserver.gradle
@@ -25,3 +25,7 @@ dependencies {
 	testImplementation "org.junit.jupiter:junit-jupiter"
 	testImplementation "net.sourceforge.htmlunit:htmlunit"
 }
+
+tasks.named("test") {
+	useJUnitPlatform()
+}
diff --git a/samples/demo-authorizationserver/samples-demo-authorizationserver.gradle b/samples/demo-authorizationserver/samples-demo-authorizationserver.gradle
index 2beea056..34dc9405 100644
--- a/samples/demo-authorizationserver/samples-demo-authorizationserver.gradle
+++ b/samples/demo-authorizationserver/samples-demo-authorizationserver.gradle
@@ -31,6 +31,6 @@ dependencies {
 	testImplementation "net.sourceforge.htmlunit:htmlunit"
 }
 
-test {
+tasks.named("test") {
 	useJUnitPlatform()
 }
diff --git a/samples/demo-authorizationserver/src/test/java/sample/DemoAuthorizationServerApplicationTests.java b/samples/demo-authorizationserver/src/test/java/sample/DemoAuthorizationServerApplicationTests.java
index 76cc4318..36d121f0 100644
--- a/samples/demo-authorizationserver/src/test/java/sample/DemoAuthorizationServerApplicationTests.java
+++ b/samples/demo-authorizationserver/src/test/java/sample/DemoAuthorizationServerApplicationTests.java
@@ -68,7 +68,7 @@ public class DemoAuthorizationServerApplicationTests {
 	}
 
 	@Test
-	public void whenLoginSuccessfulThenDisplayNotFoundError() throws IOException {
+	public void whenLoginSuccessfulThenDisplayBadRequestError() throws IOException {
 		HtmlPage page = this.webClient.getPage("/");
 
 		assertLoginPage(page);