diff --git a/spring-boot-demo-helloworld/README.md b/spring-boot-demo-helloworld/README.md
index 2453b69..d8a0a41 100644
--- a/spring-boot-demo-helloworld/README.md
+++ b/spring-boot-demo-helloworld/README.md
@@ -9,7 +9,6 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
-	<groupId>com.xkcoding</groupId>
 	<artifactId>spring-boot-demo-helloworld</artifactId>
 	<version>0.0.1-SNAPSHOT</version>
 	<packaging>jar</packaging>
@@ -18,17 +17,15 @@
 	<description>Demo project for Spring Boot</description>
 
 	<parent>
-		<groupId>org.springframework.boot</groupId>
-		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.0.5.RELEASE</version>
-		<relativePath/> <!-- lookup parent from repository -->
+		<groupId>com.xkcoding</groupId>
+		<artifactId>spring-boot-demo</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
 	</parent>
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.8</java.version>
-		<hutool.version>4.1.17</hutool.version>
 	</properties>
 
 	<dependencies>
@@ -46,7 +43,6 @@
 		<dependency>
 			<groupId>cn.hutool</groupId>
 			<artifactId>hutool-all</artifactId>
-			<version>${hutool.version}</version>
 		</dependency>
 	</dependencies>
 
diff --git a/spring-boot-demo-helloworld/pom.xml b/spring-boot-demo-helloworld/pom.xml
index 5a32622..5130c62 100644
--- a/spring-boot-demo-helloworld/pom.xml
+++ b/spring-boot-demo-helloworld/pom.xml
@@ -3,7 +3,6 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
-	<groupId>com.xkcoding</groupId>
 	<artifactId>spring-boot-demo-helloworld</artifactId>
 	<version>0.0.1-SNAPSHOT</version>
 	<packaging>jar</packaging>
@@ -12,17 +11,15 @@
 	<description>Demo project for Spring Boot</description>
 
 	<parent>
-		<groupId>org.springframework.boot</groupId>
-		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.0.5.RELEASE</version>
-		<relativePath/> <!-- lookup parent from repository -->
+		<groupId>com.xkcoding</groupId>
+		<artifactId>spring-boot-demo</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
 	</parent>
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.8</java.version>
-		<hutool.version>4.1.17</hutool.version>
 	</properties>
 
 	<dependencies>
@@ -40,7 +37,6 @@
 		<dependency>
 			<groupId>cn.hutool</groupId>
 			<artifactId>hutool-all</artifactId>
-			<version>${hutool.version}</version>
 		</dependency>
 	</dependencies>