diff --git a/spring-web-modules/spring-thymeleaf-2/pom.xml b/spring-web-modules/spring-thymeleaf-2/pom.xml
index 14e4de668b..422edbfd68 100644
--- a/spring-web-modules/spring-thymeleaf-2/pom.xml
+++ b/spring-web-modules/spring-thymeleaf-2/pom.xml
@@ -9,9 +9,9 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-boot-2</artifactId>
+        <artifactId>parent-boot-3</artifactId>
         <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../../parent-boot-2</relativePath>
+        <relativePath>../../parent-boot-3</relativePath>
     </parent>
 
     <dependencies>
diff --git a/spring-web-modules/spring-thymeleaf-2/src/main/java/com/baeldung/thymeleaf/enums/WidgetController.java b/spring-web-modules/spring-thymeleaf-2/src/main/java/com/baeldung/thymeleaf/enums/WidgetController.java
index c66464d75b..fb27c33026 100644
--- a/spring-web-modules/spring-thymeleaf-2/src/main/java/com/baeldung/thymeleaf/enums/WidgetController.java
+++ b/spring-web-modules/spring-thymeleaf-2/src/main/java/com/baeldung/thymeleaf/enums/WidgetController.java
@@ -1,6 +1,6 @@
 package com.baeldung.thymeleaf.enums;
 
-import javax.validation.Valid;
+import jakarta.validation.Valid;
 
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
diff --git a/spring-web-modules/spring-thymeleaf-3/pom.xml b/spring-web-modules/spring-thymeleaf-3/pom.xml
index 8f39c17d8c..064af14385 100644
--- a/spring-web-modules/spring-thymeleaf-3/pom.xml
+++ b/spring-web-modules/spring-thymeleaf-3/pom.xml
@@ -9,9 +9,9 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-boot-2</artifactId>
+        <artifactId>parent-boot-3</artifactId>
         <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../../parent-boot-2</relativePath>
+        <relativePath>../../parent-boot-3</relativePath>
     </parent>
 
     <dependencies>
diff --git a/spring-web-modules/spring-thymeleaf-3/src/main/java/com/baeldung/thymeleaf/errors/User.java b/spring-web-modules/spring-thymeleaf-3/src/main/java/com/baeldung/thymeleaf/errors/User.java
index a6923287af..dd9db63a90 100644
--- a/spring-web-modules/spring-thymeleaf-3/src/main/java/com/baeldung/thymeleaf/errors/User.java
+++ b/spring-web-modules/spring-thymeleaf-3/src/main/java/com/baeldung/thymeleaf/errors/User.java
@@ -1,13 +1,13 @@
 package com.baeldung.thymeleaf.errors;
 
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
-import javax.validation.constraints.Min;
-import javax.validation.constraints.NotEmpty;
-import javax.validation.constraints.NotNull;
-import javax.validation.constraints.Size;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
 
 @Entity
 public class User {
diff --git a/spring-web-modules/spring-thymeleaf-3/src/main/java/com/baeldung/thymeleaf/errors/UserController.java b/spring-web-modules/spring-thymeleaf-3/src/main/java/com/baeldung/thymeleaf/errors/UserController.java
index 92e67dc6a8..575bf5e24a 100644
--- a/spring-web-modules/spring-thymeleaf-3/src/main/java/com/baeldung/thymeleaf/errors/UserController.java
+++ b/spring-web-modules/spring-thymeleaf-3/src/main/java/com/baeldung/thymeleaf/errors/UserController.java
@@ -1,6 +1,6 @@
 package com.baeldung.thymeleaf.errors;
 
-import javax.validation.Valid;
+import jakarta.validation.Valid;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
diff --git a/spring-web-modules/spring-thymeleaf-3/src/main/java/com/baeldung/thymeleaf/option/Student.java b/spring-web-modules/spring-thymeleaf-3/src/main/java/com/baeldung/thymeleaf/option/Student.java
index 3bb6576096..33163a00b7 100644
--- a/spring-web-modules/spring-thymeleaf-3/src/main/java/com/baeldung/thymeleaf/option/Student.java
+++ b/spring-web-modules/spring-thymeleaf-3/src/main/java/com/baeldung/thymeleaf/option/Student.java
@@ -2,8 +2,8 @@ package com.baeldung.thymeleaf.option;
 
 import java.io.Serializable;
 
-import javax.validation.constraints.Min;
-import javax.validation.constraints.NotNull;
+import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotNull;
 
 /**
  *