diff --git a/android/app/build.gradle b/android/app/build.gradle
index da1d1a9..e685e3a 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -30,11 +30,18 @@ android {
         versionName = flutter.versionName
     }
 
+    signingConfigs {
+        release {
+            storeFile file('/home/ubuntu/banxiang-release.jks')
+            storePassword 'banxiang2026'
+            keyAlias 'banxiang'
+            keyPassword 'banxiang2026'
+        }
+    }
+
     buildTypes {
         release {
-            // TODO: Add your own signing config for the release build.
-            // Signing with the debug keys for now, so `flutter run --release` works.
-            signingConfig = signingConfigs.debug
+            signingConfig = signingConfigs.release
         }
     }
 }
diff --git a/releases/banxiang-v1.2.0-about.apk b/releases/banxiang-v1.2.0-about.apk
new file mode 100644
index 0000000..ff184b0
Binary files /dev/null and b/releases/banxiang-v1.2.0-about.apk differ