diff --git a/app/build.gradle b/app/build.gradle
index 1910aa00..81be2566 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -22,8 +22,8 @@ android {
         targetSdkVersion target_sdk_version
         minSdkVersion min_sdk_version
 
-        versionCode 423
-        versionName "4.2.3"
+        versionCode 424
+        versionName "4.2.4"
         applicationId "jp.juggler.subwaytooter"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"