diff --git a/spring-boot-modules/spring-boot-actuator/pom.xml b/spring-boot-modules/spring-boot-actuator/pom.xml
index 1ccf436bbf..7f630fa96e 100644
--- a/spring-boot-modules/spring-boot-actuator/pom.xml
+++ b/spring-boot-modules/spring-boot-actuator/pom.xml
@@ -9,9 +9,10 @@
     <description>This is simple boot application for Spring boot actuator test</description>
 
     <parent>
-        <groupId>com.baeldung.spring-boot-modules</groupId>
-        <artifactId>spring-boot-modules</artifactId>
-        <version>1.0.0-SNAPSHOT</version>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-3</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-boot-3</relativePath>
     </parent>
 
     <dependencies>
@@ -39,16 +40,6 @@
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
         </dependency>
-        <dependency>
-            <groupId>javax.servlet</groupId>
-            <artifactId>javax.servlet-api</artifactId>
-            <scope>provided</scope>
-        </dependency>
-        <dependency>
-            <groupId>javax.servlet</groupId>
-            <artifactId>jstl</artifactId>
-            <scope>runtime</scope>
-        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
diff --git a/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/endpoints/enabling/SecurityConfiguration.java b/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/endpoints/enabling/SecurityConfiguration.java
index 894c24693e..20ee834d52 100644
--- a/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/endpoints/enabling/SecurityConfiguration.java
+++ b/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/endpoints/enabling/SecurityConfiguration.java
@@ -1,36 +1,56 @@
 package com.baeldung.endpoints.enabling;
 
 import org.springframework.boot.actuate.autoconfigure.security.servlet.EndpointRequest;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
+import org.springframework.security.config.Customizer;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
-import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
-import org.springframework.security.crypto.factory.PasswordEncoderFactories;
-import org.springframework.security.crypto.password.PasswordEncoder;
+import org.springframework.security.core.userdetails.User;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.provisioning.InMemoryUserDetailsManager;
+import org.springframework.security.web.SecurityFilterChain;
+import org.springframework.security.web.servlet.util.matcher.MvcRequestMatcher;
+import org.springframework.web.servlet.handler.HandlerMappingIntrospector;
 
-@Configuration
 @EnableWebSecurity
-public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
+@Configuration
+public class SecurityConfiguration {
 
-    @Override
-    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
-        PasswordEncoder encoder = PasswordEncoderFactories.createDelegatingPasswordEncoder();
-        auth.inMemoryAuthentication()
-          .withUser("user")
-          .password(encoder.encode("password"))
-          .roles("USER")
-          .and()
-          .withUser("admin")
-          .password(encoder.encode("admin"))
-          .roles("USER", "ADMIN");
+    @Bean
+    MvcRequestMatcher.Builder mvc(HandlerMappingIntrospector introspector) {
+        return new MvcRequestMatcher.Builder(introspector);
     }
 
-    @Override
-    protected void configure(HttpSecurity http) throws Exception {
-        http.requestMatcher(EndpointRequest.toAnyEndpoint())
-          .authorizeRequests((requests) -> requests.anyRequest()
-            .hasRole("ADMIN"));
-        http.httpBasic();
+    @Bean
+    public SecurityFilterChain filterChain(HttpSecurity http, MvcRequestMatcher.Builder mvc) throws Exception {
+        http.httpBasic(Customizer.withDefaults());
+        http.securityMatcher(EndpointRequest.toAnyEndpoint());
+        http.authorizeHttpRequests(authz -> {
+                authz.requestMatchers(mvc.pattern("/actuator/**"))
+                    .hasRole("ADMIN")
+                    .anyRequest()
+                    .authenticated();
+            });
+
+        return http.build();
+    }
+
+
+
+    @Bean
+    public InMemoryUserDetailsManager userDetailsService() {
+        UserDetails user =  User.withDefaultPasswordEncoder()
+            .username("user")
+            .password("password")
+            .roles("USER")
+            .build();
+        UserDetails admin =  User.withDefaultPasswordEncoder()
+            .username("admin")
+            .password("password")
+            .roles("USER", "ADMIN")
+            .build();
+        return new InMemoryUserDetailsManager(user, admin);
     }
 }
diff --git a/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/endpoints/info/User.java b/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/endpoints/info/User.java
index db4e69127a..88f39d8ccc 100644
--- a/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/endpoints/info/User.java
+++ b/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/endpoints/info/User.java
@@ -1,9 +1,9 @@
 package com.baeldung.endpoints.info;
 
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.Id;
-import javax.persistence.Table;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
 
 @Entity
 @Table(name = "users")
diff --git a/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/metrics/MetricsApplication.java b/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/metrics/MetricsApplication.java
index 729b3c0b96..ee87412986 100644
--- a/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/metrics/MetricsApplication.java
+++ b/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/metrics/MetricsApplication.java
@@ -15,7 +15,7 @@ import org.springframework.context.annotation.ComponentScan;
 import org.springframework.scheduling.annotation.EnableScheduling;
 import org.springframework.web.context.request.RequestContextListener;
 
-import javax.servlet.ServletContext;
+import jakarta.servlet.ServletContext;
 
 @EnableScheduling
 @ComponentScan("com.baeldung.metrics")
diff --git a/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/metrics/filter/MetricFilter.java b/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/metrics/filter/MetricFilter.java
index 0f7579f060..a7aaddf0fb 100644
--- a/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/metrics/filter/MetricFilter.java
+++ b/spring-boot-modules/spring-boot-actuator/src/main/java/com/baeldung/metrics/filter/MetricFilter.java
@@ -7,14 +7,14 @@ import org.springframework.stereotype.Component;
 import org.springframework.web.context.WebApplicationContext;
 import org.springframework.web.context.support.WebApplicationContextUtils;
 
-import javax.servlet.Filter;
-import javax.servlet.FilterChain;
-import javax.servlet.FilterConfig;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRequest;
-import javax.servlet.ServletResponse;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
+import jakarta.servlet.Filter;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.FilterConfig;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.ServletRequest;
+import jakarta.servlet.ServletResponse;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
 
 @Component
 public class MetricFilter implements Filter {
diff --git a/spring-boot-modules/spring-boot-actuator/src/test/java/com/baeldung/endpoints/enabling/EndpointEnablingIntegrationTest.java b/spring-boot-modules/spring-boot-actuator/src/test/java/com/baeldung/endpoints/enabling/EndpointEnablingIntegrationTest.java
index 8274619517..079195714b 100644
--- a/spring-boot-modules/spring-boot-actuator/src/test/java/com/baeldung/endpoints/enabling/EndpointEnablingIntegrationTest.java
+++ b/spring-boot-modules/spring-boot-actuator/src/test/java/com/baeldung/endpoints/enabling/EndpointEnablingIntegrationTest.java
@@ -13,20 +13,20 @@ import org.springframework.test.web.servlet.MockMvc;
 
 @SpringBootTest
 @AutoConfigureMockMvc
-public class EndpointEnablingIntegrationTest {
+class EndpointEnablingIntegrationTest {
     @Autowired
     private MockMvc mockMvc;
     
     @Test
     @WithMockUser(username = "user", password = "password", roles = "USER")
-    public void givenWrongAuthentication_whenCallingActuator_thenReturns401() throws Exception {
+    void givenWrongAuthentication_whenCallingActuator_thenReturns401() throws Exception {
         mockMvc.perform(get("/actuator"))
           .andExpect(status().isForbidden());
     }
     
     @Test
     @WithMockUser(username = "admin", password = "admin", roles = "ADMIN")
-    public void givenProperAuthentication_whenCallingActuator_thenReturnsExpectedEndpoints() throws Exception {
+    void givenProperAuthentication_whenCallingActuator_thenReturnsExpectedEndpoints() throws Exception {
         mockMvc.perform(get("/actuator"))
           .andExpect(jsonPath("$._links").exists())
           .andExpect(jsonPath("$._links.beans").exists())