diff --git a/docker/docker-sample-app/pom.xml b/docker/docker-sample-app/pom.xml
index 416ec45b10..6841fabcee 100644
--- a/docker/docker-sample-app/pom.xml
+++ b/docker/docker-sample-app/pom.xml
@@ -1,45 +1,45 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-        	<groupId>com.baeldung.docker</groupId>
-        	<artifactId>docker</artifactId>
-        	<version>0.0.1</version>
-	</parent>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.baeldung.docker</groupId>
+        <artifactId>docker</artifactId>
+        <version>0.0.1</version>
+    </parent>
 
-	<artifactId>docker-sample-app</artifactId>
-	<name>docker-sample-app</name>
-	<description>Demo project for Spring Boot and Docker</description>
+    <artifactId>docker-sample-app</artifactId>
+    <name>docker-sample-app</name>
+    <description>Demo project for Spring Boot and Docker</description>
 
-	<properties>
-		<java.version>11</java.version>
-	</properties>
+    <properties>
+        <java.version>11</java.version>
+    </properties>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 
 </project>
diff --git a/docker/pom.xml b/docker/pom.xml
index 0a397dd966..f481f1b8b7 100644
--- a/docker/pom.xml
+++ b/docker/pom.xml
@@ -25,7 +25,7 @@
     <modules>
         <module>docker-internal-dto</module>
         <module>docker-spring-boot</module>
-	<module>docker-sample-app</module>
+        <module>docker-sample-app</module>
     </modules>
 
 </project>