diff --git a/build.gradle b/build.gradle
index 78d2c13..a50b106 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,7 +7,9 @@ allprojects {
     sourceCompatibility = 1.7
 
     repositories {
-        mavenCentral()
+        flatDir {
+            dirs System.env.GRADLE_LIB_DIR
+       }
     }
 
     configurations{