diff --git a/app/build.gradle b/app/build.gradle
index 5a54d0e..c097057 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,9 +10,10 @@ android {
     defaultConfig {
         applicationId "net.crystalyx.setaswallpaper"
         minSdkVersion 5
+        //noinspection OldTargetApi
         targetSdkVersion 32
-        versionCode 7
-        versionName "3.0"
+        versionCode 8
+        versionName "3.1"
     }
 
     signingConfigs {
@@ -30,7 +31,9 @@ android {
         release {
             minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
-            signingConfig signingConfigs.release
+            if (System.env.STORE_FILE) {
+                signingConfig signingConfigs.release
+            }
         }
     }
 
diff --git a/app/src/main/java/net/crystalyx/setaswallpaper/SetWallpaperActivity.java b/app/src/main/java/net/crystalyx/setaswallpaper/SetWallpaperActivity.java
index eb17526..f9a4a64 100644
--- a/app/src/main/java/net/crystalyx/setaswallpaper/SetWallpaperActivity.java
+++ b/app/src/main/java/net/crystalyx/setaswallpaper/SetWallpaperActivity.java
@@ -78,6 +78,8 @@ public class SetWallpaperActivity extends Activity {
         }
 
         Toast.makeText(this, "Wallpaper set!", Toast.LENGTH_SHORT).show();
+
+        finish();
     }
 
 }
diff --git a/build.gradle b/build.gradle
index e470766..63ea1c4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,6 +17,10 @@ allprojects {
         google()
         mavenCentral()
     }
+
+    tasks.withType(JavaCompile) {
+        options.deprecation = true
+    }
 }
 
 task clean(type: Delete) {