diff --git a/ktg-mes/pom.xml b/ktg-mes/pom.xml
index b37eeb4..4f1392d 100644
--- a/ktg-mes/pom.xml
+++ b/ktg-mes/pom.xml
@@ -56,6 +56,10 @@
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
         </dependency>
+        <dependency>
+            <groupId>commons-collections</groupId>
+            <artifactId>commons-collections</artifactId>
+        </dependency>
     </dependencies>
 
 </project>
\ No newline at end of file