diff --git a/build.gradle b/build.gradle
index e893c33..9e60075 100644
--- a/build.gradle
+++ b/build.gradle
@@ -32,6 +32,7 @@ sourceCompatibility = 1.8
 //-----------------------
 
 tasks.processResources.setDuplicatesStrategy(DuplicatesStrategy.INCLUDE)
+tasks.jar.setDuplicatesStrategy(DuplicatesStrategy.INCLUDE)
 
 repositories {
     mavenCentral()