diff --git a/android/app/build.gradle.kts b/android/app/build.gradle.kts
index e412d5e..7ed9398 100644
--- a/android/app/build.gradle.kts
+++ b/android/app/build.gradle.kts
@@ -72,7 +72,8 @@ tasks.register<Exec>("cargoNdkBuild") {
     )
 }
 
-tasks.named("preBuild") { dependsOn("cargoNdkBuild") }
+// Skip cargo-ndk in CI/Docker — .so is pre-built into jniLibs
+// tasks.named("preBuild") { dependsOn("cargoNdkBuild") }
 
 dependencies {
     implementation("androidx.core:core-ktx:1.12.0")
diff --git a/android/app/src/main/java/com/wzp/ui/call/CallViewModel.kt b/android/app/src/main/java/com/wzp/ui/call/CallViewModel.kt
index 4793f97..e21c307 100644
--- a/android/app/src/main/java/com/wzp/ui/call/CallViewModel.kt
+++ b/android/app/src/main/java/com/wzp/ui/call/CallViewModel.kt
@@ -39,7 +39,7 @@ class CallViewModel : ViewModel(), WzpCallback {
     private var statsJob: Job? = null
 
     companion object {
-        const val DEFAULT_RELAY = "172.16.81.125:4433"
+        const val DEFAULT_RELAY = "172.16.81.175:4433"
         const val DEFAULT_ROOM = "android"
     }
 
diff --git a/wzp-release.apk b/wzp-release.apk
index cd9d690..ed77328 100644
Binary files a/wzp-release.apk and b/wzp-release.apk differ