diff --git a/mobile/build.gradle b/mobile/build.gradle
index d45a30dc..0903681b 100644
--- a/mobile/build.gradle
+++ b/mobile/build.gradle
@@ -10,8 +10,8 @@ android {
         minSdkVersion 21
         targetSdkVersion 27
         resConfigs "zh-rCN"
-        versionCode 20
-        versionName "1.3.0"
+        versionCode 21
+        versionName "1.3.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {