diff --git a/app/build.gradle b/app/build.gradle
index a61d020..a90b9b9 100755
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -13,8 +13,8 @@ android {
         applicationId "jp.juggler.screenshotbutton"
         minSdkVersion 21
         targetSdkVersion 29
-        versionCode 3
-        versionName "3.0"
+        versionCode 4
+        versionName "4.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
         // sign key is same to SubwayTooter