diff --git a/maven-modules/maven-simple/parent-project/core/pom.xml b/maven-modules/maven-simple/parent-project/core/pom.xml
index a403a59e84..6553889c24 100644
--- a/maven-modules/maven-simple/parent-project/core/pom.xml
+++ b/maven-modules/maven-simple/parent-project/core/pom.xml
@@ -3,14 +3,24 @@
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     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>org.baeldung</groupId>
     <artifactId>core</artifactId>
     <name>core</name>
 
     <parent>
         <artifactId>parent-project</artifactId>
         <groupId>com.baeldung</groupId>
-        <version>1.0.0-SNAPSHOT</version>
+        <version>1.0-SNAPSHOT</version>
     </parent>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-core</artifactId>
+            <version>${spring-core.version}</version>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <spring-core.version>4.3.30.RELEASE</spring-core.version>
+    </properties>
 </project>
\ No newline at end of file
diff --git a/maven-modules/maven-simple/parent-project/pom.xml b/maven-modules/maven-simple/parent-project/pom.xml
index 7193b61ad7..bde903b1b5 100644
--- a/maven-modules/maven-simple/parent-project/pom.xml
+++ b/maven-modules/maven-simple/parent-project/pom.xml
@@ -4,6 +4,7 @@
     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>
     <artifactId>parent-project</artifactId>
+    <version>1.0-SNAPSHOT</version>
     <name>parent-project</name>
     <packaging>pom</packaging>
 
@@ -19,4 +20,17 @@
         <module>webapp</module>
     </modules>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework</groupId>
+                <artifactId>spring-core</artifactId>
+                <version>${spring-core.version}</version>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <properties>
+        <spring-core.version>5.3.16</spring-core.version>
+    </properties>
 </project>
\ No newline at end of file
diff --git a/maven-modules/maven-simple/parent-project/service/pom.xml b/maven-modules/maven-simple/parent-project/service/pom.xml
index ee51b51d1b..78d458c55a 100644
--- a/maven-modules/maven-simple/parent-project/service/pom.xml
+++ b/maven-modules/maven-simple/parent-project/service/pom.xml
@@ -3,14 +3,13 @@
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     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>org.baeldung</groupId>
     <artifactId>service</artifactId>
     <name>service</name>
 
     <parent>
         <artifactId>parent-project</artifactId>
         <groupId>com.baeldung</groupId>
-        <version>1.0.0-SNAPSHOT</version>
+        <version>1.0-SNAPSHOT</version>
     </parent>
 
 </project>
\ No newline at end of file
diff --git a/maven-modules/maven-simple/parent-project/webapp/pom.xml b/maven-modules/maven-simple/parent-project/webapp/pom.xml
index d034d4e7d1..f6cee60cbf 100644
--- a/maven-modules/maven-simple/parent-project/webapp/pom.xml
+++ b/maven-modules/maven-simple/parent-project/webapp/pom.xml
@@ -3,14 +3,31 @@
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     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>org.baeldung</groupId>
     <artifactId>webapp</artifactId>
     <name>webapp</name>
 
+    <packaging>war</packaging>
+
     <parent>
         <artifactId>parent-project</artifactId>
         <groupId>com.baeldung</groupId>
-        <version>1.0.0-SNAPSHOT</version>
+        <version>1.0-SNAPSHOT</version>
     </parent>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-war-plugin</artifactId>
+                <version>${maven-war-plugin.version}</version>
+                <configuration>
+                    <failOnMissingWebXml>false</failOnMissingWebXml>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <maven-war-plugin.version>3.3.2</maven-war-plugin.version>
+    </properties>
 </project>
\ No newline at end of file