diff --git a/app/build.gradle b/app/build.gradle
index fcd7df70..06f3a019 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -32,8 +32,8 @@ android {
         targetSdkVersion stTargetSdkVersion
         minSdkVersion stMinSdkVersion
 
-        versionCode 520
-        versionName "5.520"
+        versionCode 521
+        versionName "5.521"
         applicationId "jp.juggler.subwaytooter"
         vectorDrawables.useSupportLibrary = true