diff --git a/app/build.gradle b/app/build.gradle
index 0d952ed22..115ef1ea2 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -30,7 +30,7 @@ android {
         //noinspection ExpiredTargetSdkVersion
         targetSdkVersion 29
         versionCode 111
-        versionName "1.9.7.7"
+        versionName "1.9.7.8"
         vectorDrawables.useSupportLibrary = true
         resConfigs 'zh', 'zh-rCN', 'zh-rHK', 'zh-rTW', 'es', 'ja', 'ko', 'fr', 'de', 'th'
         testOptions.unitTests.includeAndroidResources = true