diff --git a/spring-cloud-modules/spring-cloud-gateway/pom.xml b/spring-cloud-modules/spring-cloud-gateway/pom.xml
index 0287ab7588..5d0594a259 100644
--- a/spring-cloud-modules/spring-cloud-gateway/pom.xml
+++ b/spring-cloud-modules/spring-cloud-gateway/pom.xml
@@ -8,9 +8,10 @@
     <packaging>jar</packaging>
 
     <parent>
-        <groupId>com.baeldung.spring.cloud</groupId>
-        <artifactId>spring-cloud-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>
 
     <dependencyManagement>
@@ -29,13 +30,6 @@
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
-            <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
         </dependencies>
     </dependencyManagement>
 
@@ -67,8 +61,9 @@
             <version>${hibernate-validator.version}</version>
         </dependency>
         <dependency>
-            <groupId>javax.validation</groupId>
-            <artifactId>validation-api</artifactId>
+            <groupId>jakarta.validation</groupId>
+            <artifactId>jakarta.validation-api</artifactId>
+            <version>${jakarta.validation-api.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -109,6 +104,7 @@
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
                 <configuration>
+                    <mainClass>com.baeldung.springcloudgateway.introduction.IntroductionGatewayApplication</mainClass>
                     <excludes>
                         <exclude>
                             <groupId>org.projectlombok</groupId>
@@ -183,12 +179,12 @@
     </profiles>
 
     <properties>
-        <!-- <spring-cloud-dependencies.version>Hoxton.SR3</spring-cloud-dependencies.version> -->
-        <!-- <spring-boot.version>2.2.6.RELEASE</spring-boot.version> -->
+        <spring-cloud-dependencies.version>2023.0.0</spring-cloud-dependencies.version>
         <hibernate-validator.version>8.0.1.Final</hibernate-validator.version>
         <redis.version>0.7.2</redis.version>
         <oauth2-oidc-sdk.version>9.19</oauth2-oidc-sdk.version>
         <!-- <junit-bom.version>5.5.2</junit-bom.version> -->
+        <jakarta.validation-api.version>3.0.2</jakarta.validation-api.version>
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/spring-cloud-modules/spring-cloud-gateway/src/main/java/com/baeldung/springcloudgateway/custompredicates/factories/GoldenCustomerRoutePredicateFactory.java b/spring-cloud-modules/spring-cloud-gateway/src/main/java/com/baeldung/springcloudgateway/custompredicates/factories/GoldenCustomerRoutePredicateFactory.java
index cb5c3a0b50..cf4545fd50 100644
--- a/spring-cloud-modules/spring-cloud-gateway/src/main/java/com/baeldung/springcloudgateway/custompredicates/factories/GoldenCustomerRoutePredicateFactory.java
+++ b/spring-cloud-modules/spring-cloud-gateway/src/main/java/com/baeldung/springcloudgateway/custompredicates/factories/GoldenCustomerRoutePredicateFactory.java
@@ -7,7 +7,7 @@ import java.util.Arrays;
 import java.util.List;
 import java.util.function.Predicate;
 
-import javax.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.NotEmpty;
 
 import org.springframework.cloud.gateway.handler.predicate.AbstractRoutePredicateFactory;
 import org.springframework.http.HttpCookie;
diff --git a/spring-cloud-modules/spring-cloud-gateway/src/main/java/com/baeldung/springcloudgateway/oauth/backend/web/QuoteApi.java b/spring-cloud-modules/spring-cloud-gateway/src/main/java/com/baeldung/springcloudgateway/oauth/backend/web/QuoteApi.java
index 6d3721166c..cf81b4a99e 100644
--- a/spring-cloud-modules/spring-cloud-gateway/src/main/java/com/baeldung/springcloudgateway/oauth/backend/web/QuoteApi.java
+++ b/spring-cloud-modules/spring-cloud-gateway/src/main/java/com/baeldung/springcloudgateway/oauth/backend/web/QuoteApi.java
@@ -1,6 +1,6 @@
 package com.baeldung.springcloudgateway.oauth.backend.web;
 
-import javax.annotation.PostConstruct;
+import jakarta.annotation.PostConstruct;
 
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.authority.SimpleGrantedAuthority;
diff --git a/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/CustomFiltersLiveTest.java b/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/CustomFiltersLiveTest.java
index f49f8c68b6..a34f152a86 100644
--- a/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/CustomFiltersLiveTest.java
+++ b/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/CustomFiltersLiveTest.java
@@ -8,7 +8,7 @@ import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
-import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.boot.test.web.server.LocalServerPort;
 import org.springframework.test.web.reactive.server.WebTestClient;
 import org.springframework.test.web.reactive.server.WebTestClient.ResponseSpec;
 
diff --git a/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/factories/ScrubResponseGatewayFilterLiveTest.java b/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/factories/ScrubResponseGatewayFilterLiveTest.java
index 8906af774e..e43d017267 100644
--- a/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/factories/ScrubResponseGatewayFilterLiveTest.java
+++ b/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/factories/ScrubResponseGatewayFilterLiveTest.java
@@ -14,7 +14,7 @@ import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
 import org.springframework.boot.test.context.TestConfiguration;
-import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.boot.test.web.server.LocalServerPort;
 import org.springframework.cloud.gateway.filter.factory.SetPathGatewayFilterFactory;
 import org.springframework.cloud.gateway.route.RouteLocator;
 import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
diff --git a/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/custompredicates/CustomPredicatesApplicationLiveTest.java b/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/custompredicates/CustomPredicatesApplicationLiveTest.java
index d9988ceb5e..08082f7c15 100644
--- a/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/custompredicates/CustomPredicatesApplicationLiveTest.java
+++ b/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/custompredicates/CustomPredicatesApplicationLiveTest.java
@@ -14,7 +14,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
 import org.springframework.boot.test.web.client.TestRestTemplate;
-import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.boot.test.web.server.LocalServerPort;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.RequestEntity;
 import org.springframework.http.ResponseEntity;
diff --git a/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/rewrite/URLRewriteGatewayApplicationLiveTest.java b/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/rewrite/URLRewriteGatewayApplicationLiveTest.java
index 41fe37045c..fe9d20024b 100644
--- a/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/rewrite/URLRewriteGatewayApplicationLiveTest.java
+++ b/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/rewrite/URLRewriteGatewayApplicationLiveTest.java
@@ -13,7 +13,7 @@ import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
-import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.boot.test.web.server.LocalServerPort;
 import org.springframework.test.context.ActiveProfiles;
 import org.springframework.test.context.DynamicPropertyRegistry;
 import org.springframework.test.context.DynamicPropertySource;
diff --git a/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/webfilters/RedisWebFilterFactoriesLiveTest.java b/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/webfilters/RedisWebFilterFactoriesLiveTest.java
index a28eb68775..cf6302eb28 100644
--- a/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/webfilters/RedisWebFilterFactoriesLiveTest.java
+++ b/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/webfilters/RedisWebFilterFactoriesLiveTest.java
@@ -11,7 +11,7 @@ import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
 import org.springframework.boot.test.context.TestConfiguration;
 import org.springframework.boot.test.web.client.TestRestTemplate;
-import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.boot.test.web.server.LocalServerPort;
 import org.springframework.http.ResponseEntity;
 import org.springframework.test.context.ActiveProfiles;
 
@@ -51,9 +51,8 @@ public class RedisWebFilterFactoriesLiveTest {
         ResponseEntity<String> r = restTemplate.getForEntity(url, String.class);
         // assertThat(response.getStatusCode()).isEqualTo(HttpStatus.OK);
 
-        LOGGER.info("Received: status->{}, reason->{}, remaining->{}", 
-          r.getStatusCodeValue(), r.getStatusCode().getReasonPhrase(), 
-          r.getHeaders().get("X-RateLimit-Remaining"));
+        LOGGER.info("Received: status->{}, remaining->{}",
+          r.getStatusCodeValue(), r.getHeaders().get("X-RateLimit-Remaining"));
     }
     
     @After
diff --git a/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/webfilters/WebFilterFactoriesLiveTest.java b/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/webfilters/WebFilterFactoriesLiveTest.java
index 67e00a42fc..0caf92c2e8 100644
--- a/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/webfilters/WebFilterFactoriesLiveTest.java
+++ b/spring-cloud-modules/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/webfilters/WebFilterFactoriesLiveTest.java
@@ -14,7 +14,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
 import org.springframework.boot.test.web.client.TestRestTemplate;
-import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.boot.test.web.server.LocalServerPort;
 import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpMethod;