diff --git a/part-1/build.gradle b/part-1/build.gradle
index 5e43522..687f10c 100644
--- a/part-1/build.gradle
+++ b/part-1/build.gradle
@@ -1,3 +1,7 @@
+plugins {
+    id "net.ltgt.apt" version "0.7"
+}
+
 apply plugin: 'java'
 apply plugin: 'application'
 
@@ -9,8 +13,8 @@ jar {
 }
 
 dependencies {
+    apt     'com.google.dagger:dagger-compiler:2.6'
     compile 'com.google.dagger:dagger:2.6'
-    compile 'com.google.dagger:dagger-compiler:2.6'
 }
 
 repositories {