diff --git a/app/build.gradle b/app/build.gradle
index 1cbc78d..af15434 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,6 +1,8 @@
 apply plugin: 'com.android.application'
 
 android {
+    signingConfigs {
+    }
     compileSdkVersion 23
     buildToolsVersion '23.0.1'
     defaultConfig {
@@ -13,7 +15,7 @@ android {
     }
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }