diff --git a/app/build.gradle b/app/build.gradle
index 79aa4cabf..aceb46b21 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -16,8 +16,8 @@ android {
         applicationId "com.geeksville.mesh"
         minSdkVersion 22 // The oldest emulator image I have tried is 22 (though 21 probably works)
         targetSdkVersion 29
-        versionCode 139
-        versionName "0.3.9"
+        versionCode 140
+        versionName "0.4.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
     buildTypes {