diff --git a/core-java-collections/pom.xml b/core-java-collections/pom.xml
index 694d2da5eb..b4a6e26d13 100644
--- a/core-java-collections/pom.xml
+++ b/core-java-collections/pom.xml
@@ -1,7 +1,6 @@
 <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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>core-java-collections</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <packaging>jar</packaging>
@@ -63,11 +62,17 @@
             <artifactId>jmh-generator-annprocess</artifactId>
             <version>${openjdk.jmh.version}</version>
         </dependency>
-	    <dependency>
-		<groupId>org.apache.commons</groupId>
-		<artifactId>commons-exec</artifactId>
-		<version>1.3</version>
-        </dependency>	        
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-exec</artifactId>
+            <version>1.3</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>one.util</groupId>
+            <artifactId>streamex</artifactId>
+            <version>0.6.5</version>
+        </dependency>
     </dependencies>
 
     <properties>