diff --git a/mobile/android/app/build.gradle.kts b/mobile/android/app/build.gradle.kts
index 59f9d53..30ecc42 100644
--- a/mobile/android/app/build.gradle.kts
+++ b/mobile/android/app/build.gradle.kts
@@ -25,6 +25,14 @@ android {
         versionName = flutter.versionName
     }
 
+    // 压缩打包 .so（默认未压缩存储，OpenIM/WebRTC 的 native 库让包多占近一倍体积）；
+    // 代价是安装时多解压一次，对内网分发来说体积更关键。
+    packaging {
+        jniLibs {
+            useLegacyPackaging = true
+        }
+    }
+
     buildTypes {
         release {
             // TODO: Add your own signing config for the release build.