diff --git a/app/build.gradle b/app/build.gradle
index 0413d8c69..9be6dad69 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -26,7 +26,7 @@ android {
         applicationId "io.github.nekoinverter.ehviewer"
         minSdkVersion 21
         targetSdkVersion 30
-        versionCode 129
+        versionCode 131
         versionName "1.7.20"
         resConfigs "zh", "zh-rCN", "zh-rHK", "zh-rTW",
                 "es", "ja", "ko", "fr", "de", "th"
diff --git a/app/src/main/java/com/hippo/scene/StageActivity.java b/app/src/main/java/com/hippo/scene/StageActivity.java
index 767ca3923..cb5619527 100644
--- a/app/src/main/java/com/hippo/scene/StageActivity.java
+++ b/app/src/main/java/com/hippo/scene/StageActivity.java
@@ -561,10 +561,10 @@ public abstract class StageActivity extends EhActivity {
             return;
         }
 
-        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.N){
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
             fragmentManager.beginTransaction().detach(fragment).commitAllowingStateLoss();
             fragmentManager.beginTransaction().attach(fragment).commitAllowingStateLoss();
-        }else{
+        } else {
             fragmentManager.beginTransaction().detach(fragment).attach(fragment).commitAllowingStateLoss();
         }
     }