diff --git a/app/build.gradle b/app/build.gradle
index 82b68ec..90aa41c 100755
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -14,7 +14,8 @@ android {
     buildTypes {
         release {
             minifyEnabled true
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            shrinkResources true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
 }