diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
new file mode 100644
index 0000000..265de9d
--- /dev/null
+++ b/.github/workflows/verify.yml
@@ -0,0 +1,22 @@
+name: Verify
+
+on:
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  compile:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java: [17]
+    name: Java ${{ matrix.java }} compile and run tests
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          java-version: ${{ matrix.java }}
+          distribution: 'adopt-hotspot'
+      - name: Compile with Java ${{ matrix.java }}
+        run: mvn test --no-transfer-progress
diff --git a/pom.xml b/pom.xml
index 8f994ed..139e36c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.5.5</version>
+		<version>2.7.0</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerMockMvcStandaloneTest.java b/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerMockMvcStandaloneTest.java
index af52c26..423ff06 100644
--- a/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerMockMvcStandaloneTest.java
+++ b/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerMockMvcStandaloneTest.java
@@ -44,7 +44,7 @@ public class SuperHeroControllerMockMvcStandaloneTest {
     private JacksonTester<SuperHero> jsonSuperHero;
 
     @BeforeEach
-    public void setup() {
+    void setup() {
         // We would need this line if we would not use the MockitoExtension
         // MockitoAnnotations.initMocks(this);
         // Here we can't use @AutoConfigureJsonTesters because there isn't a Spring context
@@ -57,7 +57,7 @@ public void setup() {
     }
 
     @Test
-    public void canRetrieveByIdWhenExists() throws Exception {
+    void canRetrieveByIdWhenExists() throws Exception {
         // given
         given(superHeroRepository.getSuperHero(2))
                 .willReturn(new SuperHero("Rob", "Mannon", "RobotMan"));
@@ -76,7 +76,7 @@ public void canRetrieveByIdWhenExists() throws Exception {
     }
 
     @Test
-    public void canRetrieveByIdWhenDoesNotExist() throws Exception {
+    void canRetrieveByIdWhenDoesNotExist() throws Exception {
         // given
         given(superHeroRepository.getSuperHero(2))
                 .willThrow(new NonExistingHeroException());
@@ -93,7 +93,7 @@ public void canRetrieveByIdWhenDoesNotExist() throws Exception {
     }
 
     @Test
-    public void canRetrieveByNameWhenExists() throws Exception {
+    void canRetrieveByNameWhenExists() throws Exception {
         // given
         given(superHeroRepository.getSuperHero("RobotMan"))
                 .willReturn(Optional.of(new SuperHero("Rob", "Mannon", "RobotMan")));
@@ -112,7 +112,7 @@ public void canRetrieveByNameWhenExists() throws Exception {
     }
 
     @Test
-    public void canRetrieveByNameWhenDoesNotExist() throws Exception {
+    void canRetrieveByNameWhenDoesNotExist() throws Exception {
         // given
         given(superHeroRepository.getSuperHero("RobotMan"))
                 .willReturn(Optional.empty());
@@ -129,7 +129,7 @@ public void canRetrieveByNameWhenDoesNotExist() throws Exception {
     }
 
     @Test
-    public void canCreateANewSuperHero() throws Exception {
+    void canCreateANewSuperHero() throws Exception {
         // when
         MockHttpServletResponse response = mvc.perform(
                 post("/superheroes/").contentType(MediaType.APPLICATION_JSON).content(
@@ -141,7 +141,7 @@ public void canCreateANewSuperHero() throws Exception {
     }
 
     @Test
-    public void headerIsPresent() throws Exception {
+    void headerIsPresent() throws Exception {
         // when
         MockHttpServletResponse response = mvc.perform(
                 get("/superheroes/2")
diff --git a/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerMockMvcWithContextTest.java b/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerMockMvcWithContextTest.java
index a840735..60f4218 100644
--- a/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerMockMvcWithContextTest.java
+++ b/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerMockMvcWithContextTest.java
@@ -41,7 +41,7 @@ public class SuperHeroControllerMockMvcWithContextTest {
     private JacksonTester<SuperHero> jsonSuperHero;
 
     @Test
-    public void canRetrieveByIdWhenExists() throws Exception {
+    void canRetrieveByIdWhenExists() throws Exception {
         // given
         given(superHeroRepository.getSuperHero(2))
                 .willReturn(new SuperHero("Rob", "Mannon", "RobotMan"));
@@ -60,7 +60,7 @@ public void canRetrieveByIdWhenExists() throws Exception {
     }
 
     @Test
-    public void canRetrieveByIdWhenDoesNotExist() throws Exception {
+    void canRetrieveByIdWhenDoesNotExist() throws Exception {
         // given
         given(superHeroRepository.getSuperHero(2))
                 .willThrow(new NonExistingHeroException());
@@ -77,7 +77,7 @@ public void canRetrieveByIdWhenDoesNotExist() throws Exception {
     }
 
     @Test
-    public void canRetrieveByNameWhenExists() throws Exception {
+    void canRetrieveByNameWhenExists() throws Exception {
         // given
         given(superHeroRepository.getSuperHero("RobotMan"))
                 .willReturn(Optional.of(new SuperHero("Rob", "Mannon", "RobotMan")));
@@ -96,7 +96,7 @@ public void canRetrieveByNameWhenExists() throws Exception {
     }
 
     @Test
-    public void canRetrieveByNameWhenDoesNotExist() throws Exception {
+    void canRetrieveByNameWhenDoesNotExist() throws Exception {
         // given
         given(superHeroRepository.getSuperHero("RobotMan"))
                 .willReturn(Optional.empty());
@@ -113,7 +113,7 @@ public void canRetrieveByNameWhenDoesNotExist() throws Exception {
     }
 
     @Test
-    public void canCreateANewSuperHero() throws Exception {
+    void canCreateANewSuperHero() throws Exception {
         // when
         MockHttpServletResponse response = mvc.perform(
                 post("/superheroes/").contentType(MediaType.APPLICATION_JSON).content(
@@ -125,7 +125,7 @@ public void canCreateANewSuperHero() throws Exception {
     }
 
     @Test
-    public void headerIsPresent() throws Exception {
+    void headerIsPresent() throws Exception {
         // when
         MockHttpServletResponse response = mvc.perform(
                 get("/superheroes/2")
diff --git a/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerSpringBootMockTest.java b/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerSpringBootMockTest.java
index 1270e75..334e8b0 100644
--- a/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerSpringBootMockTest.java
+++ b/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerSpringBootMockTest.java
@@ -44,7 +44,7 @@ public class SuperHeroControllerSpringBootMockTest {
     private JacksonTester<SuperHero> jsonSuperHero;
 
     @Test
-    public void canRetrieveByIdWhenExists() throws Exception {
+    void canRetrieveByIdWhenExists() throws Exception {
         // given
         given(superHeroRepository.getSuperHero(2))
                 .willReturn(new SuperHero("Rob", "Mannon", "RobotMan"));
@@ -63,7 +63,7 @@ public void canRetrieveByIdWhenExists() throws Exception {
     }
 
     @Test
-    public void canRetrieveByIdWhenDoesNotExist() throws Exception {
+    void canRetrieveByIdWhenDoesNotExist() throws Exception {
         // given
         given(superHeroRepository.getSuperHero(2))
                 .willThrow(new NonExistingHeroException());
@@ -80,7 +80,7 @@ public void canRetrieveByIdWhenDoesNotExist() throws Exception {
     }
 
     @Test
-    public void canRetrieveByNameWhenExists() throws Exception {
+    void canRetrieveByNameWhenExists() throws Exception {
         // given
         given(superHeroRepository.getSuperHero("RobotMan"))
                 .willReturn(Optional.of(new SuperHero("Rob", "Mannon", "RobotMan")));
@@ -99,7 +99,7 @@ public void canRetrieveByNameWhenExists() throws Exception {
     }
 
     @Test
-    public void canRetrieveByNameWhenDoesNotExist() throws Exception {
+    void canRetrieveByNameWhenDoesNotExist() throws Exception {
         // given
         given(superHeroRepository.getSuperHero("RobotMan"))
                 .willReturn(Optional.empty());
@@ -116,7 +116,7 @@ public void canRetrieveByNameWhenDoesNotExist() throws Exception {
     }
 
     @Test
-    public void canCreateANewSuperHero() throws Exception {
+    void canCreateANewSuperHero() throws Exception {
         // when
         MockHttpServletResponse response = mvc.perform(
                 post("/superheroes/").contentType(MediaType.APPLICATION_JSON).content(
@@ -128,7 +128,7 @@ public void canCreateANewSuperHero() throws Exception {
     }
 
     @Test
-    public void headerIsPresent() throws Exception {
+    void headerIsPresent() throws Exception {
         // when
         MockHttpServletResponse response = mvc.perform(
                 get("/superheroes/2")
diff --git a/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerSpringBootTest.java b/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerSpringBootTest.java
index be3b86d..f7fe4eb 100644
--- a/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerSpringBootTest.java
+++ b/src/test/java/io/tpd/superheroes/controller/SuperHeroControllerSpringBootTest.java
@@ -33,7 +33,7 @@ public class SuperHeroControllerSpringBootTest {
     private TestRestTemplate restTemplate;
 
     @Test
-    public void canRetrieveByIdWhenExists() {
+    void canRetrieveByIdWhenExists() {
         // given
         given(superHeroRepository.getSuperHero(2))
                 .willReturn(new SuperHero("Rob", "Mannon", "RobotMan"));
@@ -47,7 +47,7 @@ public void canRetrieveByIdWhenExists() {
     }
 
     @Test
-    public void canRetrieveByIdWhenDoesNotExist() {
+    void canRetrieveByIdWhenDoesNotExist() {
         // given
         given(superHeroRepository.getSuperHero(2))
                 .willThrow(new NonExistingHeroException());
@@ -61,7 +61,7 @@ public void canRetrieveByIdWhenDoesNotExist() {
     }
 
     @Test
-    public void canRetrieveByNameWhenExists() {
+    void canRetrieveByNameWhenExists() {
         // given
         given(superHeroRepository.getSuperHero("RobotMan"))
                 .willReturn(Optional.of(new SuperHero("Rob", "Mannon", "RobotMan")));
@@ -76,7 +76,7 @@ public void canRetrieveByNameWhenExists() {
     }
 
     @Test
-    public void canRetrieveByNameWhenDoesNotExist() {
+    void canRetrieveByNameWhenDoesNotExist() {
         // given
         given(superHeroRepository.getSuperHero("RobotMan"))
                 .willReturn(Optional.empty());
@@ -91,7 +91,7 @@ public void canRetrieveByNameWhenDoesNotExist() {
     }
 
     @Test
-    public void canCreateANewSuperHero() {
+    void canCreateANewSuperHero() {
         // when
         ResponseEntity<SuperHero> superHeroResponse = restTemplate.postForEntity("/superheroes/",
                 new SuperHero("Rob", "Mannon", "RobotMan"), SuperHero.class);
@@ -101,7 +101,7 @@ public void canCreateANewSuperHero() {
     }
 
     @Test
-    public void headerIsPresent() throws Exception {
+    void headerIsPresent() throws Exception {
         // when
         ResponseEntity<SuperHero> superHeroResponse = restTemplate.getForEntity("/superheroes/2", SuperHero.class);