diff --git a/app/build.gradle b/app/build.gradle
index 02a07965b61f26e9f239783a896ad358a24af4ff..2e26f989e4b7b54fe36334f8235c25631af37dc4 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -12,8 +12,8 @@ android {
         applicationId "com.duolebo.bylrobot"
         minSdkVersion 15
         targetSdkVersion 22
-        versionCode 23
-        versionName "1.6.3"
+        versionCode 28
+        versionName "1.6.8"
     }
 
     signingConfigs {
diff --git a/app/src/main/java/com/duolebo/blyrobot/data/ImageUploadTask.kt b/app/src/main/java/com/duolebo/blyrobot/data/ImageUploadTask.kt
index acb190adee7f1d92befd42848c3aef7157408f9a..936c0e3fc7702cca653f3834edfa29ea1f7e8cfa 100644
--- a/app/src/main/java/com/duolebo/blyrobot/data/ImageUploadTask.kt
+++ b/app/src/main/java/com/duolebo/blyrobot/data/ImageUploadTask.kt
@@ -115,9 +115,13 @@ class ImageUploadTask {
         val lastUploadPos = getLastUploadImagePos()
         Log.i(TAG, "get last upload pos:$lastUploadPos")
         val size = this.uploadImages.size
-        // 移除所有已经上传的图片
+        if (lastUploadPos >= size -1)
+            return
+
+        // 需要重新上传的图片
         val reUploadImages = this.uploadImages.subList(lastUploadPos, size - 1)
-        this.uploadImages.removeAll(reUploadImages)
+        this.uploadImages = ArrayList()
+        this.uploadImages.addAll(reUploadImages)
         this.reUpload = true
         this.isUploadChecking = false
     }