diff --git a/buzzad-offerwall/buzzad-sample/build.gradle b/buzzad-offerwall/buzzad-sample/build.gradle
index ae74127e..da346be5 100644
--- a/buzzad-offerwall/buzzad-sample/build.gradle
+++ b/buzzad-offerwall/buzzad-sample/build.gradle
@@ -16,15 +16,20 @@ android {
     }
 
     buildTypes {
-        release {
+        debug {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
         }
+
+        release {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
+        }
     }
 }
 
 dependencies {
-    implementation "com.buzzvil:buzzad-offerwall:1.1.3"
+    implementation "com.buzzvil:buzzad-offerwall:1.1.4"
     implementation "com.google.android.gms:play-services-base:15.0.1"
     implementation "com.google.android.gms:play-services-ads-identifier:15.0.1"
 }