when I checkIn as a majorVersion or Minor version Its create the new version as a major below is code ;

private static void UploadFiles(string sourceFileUrl, Folder targetFolder, string fileName,ClientContext clientContext,ClientContext destinationContext, bool bolMajorVersion)     {          FileCreationInformation targetFileVersionCreationInfo = new FileCreationInformation();         targetFileVersionCreationInfo.Overwrite = true;         try         {             WebRequest request = HttpWebRequest.Create(sourceFileUrl);             request.Credentials = clientContext.Credentials;             using (WebResponse response = request.GetResponse())             {                 using (Stream stream = response.GetResponseStream())                 {                     byte[] verBuffer = new byte[32768];                     using (MemoryStream versionMS = new MemoryStream())                     {                         int read;                         while ((read = stream.Read(verBuffer, 0, verBuffer.Length)) > 0)                         {                             versionMS.Write(verBuffer, 0, read);                         }                         versionMS.Seek(0, SeekOrigin.Begin);                         targetFileVersionCreationInfo.ContentStream = versionMS;                         destinationContext.RequestTimeout = System.Threading.Timeout.Infinite;                         targetFileVersionCreationInfo.Url = targetFolder.ServerRelativeUrl+ "/" + fileName;                         Microsoft.SharePoint.Client.File targetVersionFile = targetFolder.Files.Add(targetFileVersionCreationInfo);                          Microsoft.SharePoint.Client.File file = targetVersionFile;                         //Checkout if checked in                         destinationContext.Load(file);                          destinationContext.ExecuteQuery();                          if (file.CheckOutType == CheckOutType.None)                         {                             file.CheckOut();                         }                         //ListItem lstItem = file.ListItemAllFields;                         //clientContext.Load(lstItem);                         //clientContext.ExecuteQuery();                         if (bolMajorVersion)                         {                              file.CheckIn("Uploaded through portal", CheckinType.MajorCheckIn);                          }                         else                         {                             //Overwrite to avoid creating new version                             file.CheckIn("Uploaded through portal", CheckinType.MinorCheckIn);                         }                         destinationContext.ExecuteQuery();                         //  destinationContext.ExecuteQuery();                          }                 }             }         }         catch (Exception ex)         {             //handle exception         }     } 

The file initially upload with version 0.1 after checkIn as a Majorversion its create new version 1.0 and also keep version 0.1, i need to to overwrite this 0.1 verion file . Any help should be appreciated …