diff --git a/build.gradle b/build.gradle
index 6823062..85ae14b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -43,6 +43,7 @@
     implementation group: 'com.sun.jersey', name: 'jersey-client', version: '1.19'
     implementation group: 'javax.servlet', name: 'jstl', version: '1.2'
     implementation group: 'taglibs', name: 'standard', version: '1.1.2'
+    implementation group: 'commons-codec', name: 'commons-codec', version: '1.6'
 //    implementation group: 'javax.servlet.jsp', name: 'jsp-api', version: '2.1'
     implementation group: 'log4j', name: 'log4j', version: '1.2.16'
     implementation files('libs/ojdbc6.jar')