diff --git a/build.gradle b/build.gradle
index 6664f7b..83729fd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -66,8 +66,8 @@ android {
     defaultConfig {
         minSdkVersion 26
         targetSdkVersion 28
-        versionCode 19
-        versionName "2.8"
+        versionCode 20
+        versionName "2.9"
         ndk {
             //选择要添加的对应 cpu 类型的 .so 库。
             abiFilters 'armeabi', 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
@@ -93,7 +93,7 @@ android {
             keyAlias "zhanxun"
             keyPassword "123456"
             v1SigningEnabled true
-            v2SigningEnabled true
+            v2SigningEnabled false
         }
 
         alldocubeDebug {
@@ -102,7 +102,7 @@ android {
             keyAlias "zhanxunUserdebug"
             keyPassword "123456"
             v1SigningEnabled true
-            v2SigningEnabled true
+            v2SigningEnabled false
         }
     }