update mvn shade plugin instead
diff --git a/pom.xml b/pom.xml
index b2b7f53..739377b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -88,31 +88,6 @@
           <arguments>-Psonatype-oss-release</arguments>
          </configuration>
         </plugin>
-        <plugin>
-         <groupId>org.apache.maven.plugins</groupId>
-         <artifactId>maven-compiler-plugin</artifactId>
-         <version>2.3.2</version>
-        </plugin>
-        <plugin>
-         <groupId>org.apache.maven.plugins</groupId>
-         <artifactId>maven-jar-plugin</artifactId>
-         <version>2.3.1</version>
-        </plugin>
-        <plugin>
-         <groupId>org.apache.maven.plugins</groupId>
-         <artifactId>maven-resources-plugin</artifactId>
-         <version>2.4.3</version>
-        </plugin>
-        <plugin>
-         <groupId>org.apache.maven.plugins</groupId>
-         <artifactId>maven-shade-plugin</artifactId>
-         <version>2.0</version>
-        </plugin>
-        <plugin>
-         <groupId>org.apache.maven.plugins</groupId>
-         <artifactId>maven-surefire-plugin</artifactId>
-         <version>2.7.2</version>
-        </plugin>
       </plugins>
     </pluginManagement>
     <plugins>
@@ -137,7 +112,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-shade-plugin</artifactId>
-        <version>2.0</version>
+        <version>2.1</version>
         <executions>
           <execution>
             <phase>package</phase>