diff --git a/.gitignore b/.gitignore
index f83e8cf..ddacca5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .idea
 target
 *.iml
+dependency-reduced-pom.xml
diff --git a/README.md b/README.md
index 8864d17..686da25 100644
--- a/README.md
+++ b/README.md
@@ -155,6 +155,23 @@ mvn test -D test=CulqiCreateTest#test6ValidCreateSubscription
 mvn test -D test=CulqiCreateTest#test7ChargeCapture
 ```
 
+## ¿Cómo instalar el jar de Culqi en un proyecto Maven? 
+
+```bash
+mvn install:install-file -Dfile={dir}/culqi-java-1.1.8.jar  -DgroupId=com.culqi -DartifactId=culqi-java -Dversion={version} -Dpackaging=jar
+```
+
+
+Luego agregas la siguiente dependencia en el pom.xml
+
+```xml
+<dependency>
+    <groupId>com.culqi</groupId>
+    <artifactId>culqi-java</artifactId>
+    <version>{version}</version>
+</dependency>
+```
+
 ## Autor
 
 Willy Aguirre ([@marti1125](https://github.com/marti1125) - Team Culqi)
diff --git a/pom.xml b/pom.xml
index b7a9e87..2957d51 100644
--- a/pom.xml
+++ b/pom.xml
@@ -82,25 +82,34 @@
     </distributionManagement>
 
     <build>
+
         <plugins>
-            <!-- any other plugins -->
+
             <plugin>
-                <artifactId>maven-assembly-plugin</artifactId>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>2.3</version>
                 <executions>
+                    <!-- Run shade goal on package phase -->
                     <execution>
                         <phase>package</phase>
                         <goals>
-                            <goal>single</goal>
+                            <goal>shade</goal>
                         </goals>
+                        <configuration>
+                            <transformers>
+                                <!-- add Main-Class to manifest file -->
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                                    <mainClass>com.culqi.Culqi</mainClass>
+                                </transformer>
+                            </transformers>
+                        </configuration>
                     </execution>
                 </executions>
-                <configuration>
-                    <descriptorRefs>
-                        <descriptorRef>jar-with-dependencies</descriptorRef>
-                    </descriptorRefs>
-                </configuration>
             </plugin>
+
         </plugins>
+
     </build>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/src/main/java/com/culqi/Culqi.java b/src/main/java/com/culqi/Culqi.java
index 63c9eb1..c6d2f31 100644
--- a/src/main/java/com/culqi/Culqi.java
+++ b/src/main/java/com/culqi/Culqi.java
@@ -35,4 +35,7 @@ public class Culqi {
 
     public Culqi() {}
 
+    public static void main(String[] args) {
+    }
+
 }
diff --git a/src/main/java/com/culqi/apioperation/All.java b/src/main/java/com/culqi/apioperation/All.java
index 7d7e30a..c265b82 100644
--- a/src/main/java/com/culqi/apioperation/All.java
+++ b/src/main/java/com/culqi/apioperation/All.java
@@ -1,6 +1,5 @@
 package com.culqi.apioperation;
 
-import java.util.List;
 import java.util.Map;
 
 /**
diff --git a/src/main/java/com/culqi/model/Card.java b/src/main/java/com/culqi/model/Card.java
index 7b56410..9969c44 100644
--- a/src/main/java/com/culqi/model/Card.java
+++ b/src/main/java/com/culqi/model/Card.java
@@ -3,7 +3,6 @@
 import com.culqi.apioperation.*;
 import com.culqi.util.ObjectResult;
 
-import java.util.HashMap;
 import java.util.Map;
 
 /**
diff --git a/src/main/java/com/culqi/util/ObjectResult.java b/src/main/java/com/culqi/util/ObjectResult.java
index 7e71cfb..7a7a107 100644
--- a/src/main/java/com/culqi/util/ObjectResult.java
+++ b/src/main/java/com/culqi/util/ObjectResult.java
@@ -1,11 +1,9 @@
 package com.culqi.util;
 
 import com.fasterxml.jackson.core.type.TypeReference;
-import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
 /**
diff --git a/src/main/java/com/culqi/util/ResponseHelper.java b/src/main/java/com/culqi/util/ResponseHelper.java
index 0d999a3..cffc625 100644
--- a/src/main/java/com/culqi/util/ResponseHelper.java
+++ b/src/main/java/com/culqi/util/ResponseHelper.java
@@ -5,7 +5,6 @@
 import okhttp3.*;
 
 import java.util.HashMap;
-import java.util.Iterator;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;