diff --git a/build.gradle b/build.gradle
index a3864d6..295c716 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,15 +1,12 @@
 buildscript {
 	repositories { jcenter() }
-	dependencies {
-		classpath 'com.github.jengelman.gradle.plugins:shadow:1.2.2'
-	}
 }
 
 plugins {
 	id 'java'
 	id 'application'
-	id 'com.github.johnrengelman.shadow' version '1.2.2'
-	id 'edu.sc.seis.macAppBundle' version '2.1.3'
+	id 'com.github.johnrengelman.shadow' version '1.2.3'
+	id 'edu.sc.seis.macAppBundle' version '2.1.5'
 }
 
 sourceCompatibility = 1.7