diff --git a/android/app/build.gradle.kts b/android/app/build.gradle.kts
index e1a08eb..ac682c4 100644
--- a/android/app/build.gradle.kts
+++ b/android/app/build.gradle.kts
@@ -27,8 +27,8 @@ android {
         minSdk = 26
         targetSdk = 35
         // 版本号是 OTA 的唯一判据：后端只比对 version_code，改这里才算"有新版本"
-        versionCode = 3
-        versionName = "0.3.0"
+        versionCode = 4
+        versionName = "0.4.0"
         buildConfigField("String", "API_BASE", "\"$apiBase\"")
     }