diff --git a/build.gradle b/build.gradle
index b4e8566..fcefa93 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,6 +11,7 @@ repositories {
 
 dependencies {
     testCompile 'junit:junit:4.8.1'
+    compile 'commons-pool:commons-pool:1.5.5'
 }