diff --git a/app/src/main/java/com/rtbishop/look4sat/AprsForegroundService.kt b/app/src/main/java/com/rtbishop/look4sat/AprsForegroundService.kt
index 7f287051..91632d49 100644
--- a/app/src/main/java/com/rtbishop/look4sat/AprsForegroundService.kt
+++ b/app/src/main/java/com/rtbishop/look4sat/AprsForegroundService.kt
@@ -15,6 +15,7 @@ import android.os.Build
 import android.os.Handler
 import android.os.Looper
 import android.os.IBinder
+import com.rtbishop.look4sat.BuildConfig
 import com.rtbishop.look4sat.MainApplication
 import com.rtbishop.look4sat.core.presentation.R
 import com.rtbishop.look4sat.core.data.aprs.AprsConfig
@@ -109,6 +110,8 @@ class AprsForegroundService : Service() {
         startForegroundWithNotification(cfg)
         val rep = AprsReporter(
             configProvider = { AprsStore.loadConfig(this) },
+            // The real version, so the login line cannot drift from the build again.
+            appVersion = BuildConfig.VERSION_NAME,
             positionProvider = { stationPosition() },
             onState = { lastState = it },
             onReport = { report ->
diff --git a/build-logic/convention/src/main/java/com/rtbishop/look4sat/convention/PluginSetupUtils.kt b/build-logic/convention/src/main/java/com/rtbishop/look4sat/convention/PluginSetupUtils.kt
index 6126a2d0..09f8b1da 100644
--- a/build-logic/convention/src/main/java/com/rtbishop/look4sat/convention/PluginSetupUtils.kt
+++ b/build-logic/convention/src/main/java/com/rtbishop/look4sat/convention/PluginSetupUtils.kt
@@ -62,6 +62,12 @@ internal fun Project.setupAndroidApp() {
             versionCode = libs.versions.appVersionCode.get().toInt()
             versionName = libs.versions.appVersionName.get()
         }
+        // The APRS login line reports the app version to every station on the network. It used
+        // to be a literal in core:data and drifted twice, so the app module now reads
+        // BuildConfig.VERSION_NAME - which AGP 8 only generates when asked.
+        buildFeatures {
+            buildConfig = true
+        }
         buildTypes {
             debug {
                 applicationIdSuffix = ".debug"
diff --git a/core/data/src/main/java/com/rtbishop/look4sat/core/data/aprs/AprsReporter.kt b/core/data/src/main/java/com/rtbishop/look4sat/core/data/aprs/AprsReporter.kt
index 67b39c24..9c4a9e6f 100644
--- a/core/data/src/main/java/com/rtbishop/look4sat/core/data/aprs/AprsReporter.kt
+++ b/core/data/src/main/java/com/rtbishop/look4sat/core/data/aprs/AprsReporter.kt
@@ -58,6 +58,14 @@ data class AprsReport(
 /** Report scheduler (periodic + manual trigger); connection management lives in the foreground service */
 class AprsReporter(
     private val configProvider: () -> AprsConfig,
+    /**
+     * The app's own version, reported to APRS-IS in the login line.
+     *
+     * Passed in because core:data has no BuildConfig. It used to be a literal here and drifted
+     * exactly as predicted: it still read 4.6.0 two releases later, so every station on the
+     * network was told the wrong version. A caller in the app module can read the real one.
+     */
+    private val appVersion: String,
     private val positionProvider: () -> Pair<Double, Double>? = { null },
     private val onState: (AprsState) -> Unit = {},
     private val onReport: (AprsReport) -> Unit = {}
@@ -136,11 +144,8 @@ class AprsReporter(
                 // transmitting under a passcode the app invented for an unchecked licence.
                 passcode = AprsPasscode.loginValue(cfg.callsign, cfg.passcode),
                 // Two fields, because APRS-IS wants `vers <name> <version>` as separate tokens.
-                // The version is hardcoded and drifts - it read 4.5.4 while the app was 4.6.0.
-                // core:data has no BuildConfig, so fixing that properly means passing it in from
-                // the app module; noting rather than doing it here to keep this change small.
                 softwareName = "Look4Sat",
-                version = "4.6.0"
+                version = appVersion
             ).also { client = it }
             if (!c.isConnected) c.connect()
             onState(AprsState.Connected)
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 2c362940..10e950be 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,8 +1,8 @@
 [versions]
 #noinspection UnusedVersionCatalogEntry
-appVersionCode = "468"
+appVersionCode = "469"
 #noinspection UnusedVersionCatalogEntry
-appVersionName = "4.6.1"
+appVersionName = "4.6.2"
 #noinspection UnusedVersionCatalogEntry
 compileSdk = "37"
 #noinspection UnusedVersionCatalogEntry