diff --git a/build.gradle b/build.gradle
index 4c32579a8..afd9e6be9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,6 +8,9 @@ defaultTasks 'build'
 
 allprojects {
     group = "org.elasticsearch"
+    tasks.withType(AbstractCopyTask) {
+      duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+    }
 }
 
 // Simple utility task to help with downloading artifacts and jars