diff --git a/lib/tasks/batch_add_contributors.rake b/lib/tasks/batch_add_contributors.rake
index 806c132c6..3a13d2225 100644
--- a/lib/tasks/batch_add_contributors.rake
+++ b/lib/tasks/batch_add_contributors.rake
@@ -41,6 +41,7 @@ namespace :batch_add_contributors do
           commit_date =  Time.parse(commit['commit']['author']['date'])
           commit_date_str = commit_date.strftime("%Y-%m-%d %H:%M:%S")
           site = Site.find_by_sql("select id, created_at from commit_contributors where name='#{commiter['email']}'")
+          sql =""
           if site.present?
             puts "commit_date====#{commit_date},created_at======#{site.first&.created_at}"
             if commit_date.to_i < site.first&.created_at.to_i
@@ -50,6 +51,7 @@ namespace :batch_add_contributors do
             sql = "INSERT INTO commit_contributors (`created_at`, `count`, `name`) VALUES ('#{commit_date_str}',1,'#{commiter['email']}')"
           end
           puts "sql====#{sql}"
+          next if sql.blank?
 
           sql_connection = ActiveRecord::Base.connection
           sql_connection.begin_db_transaction
@@ -95,7 +97,7 @@ namespace :batch_add_contributors do
       commit_date =  Time.parse(commit['commit']['author']['date'])
       commit_date_str = commit_date.strftime("%Y-%m-%d %H:%M:%S")
       site = Site.find_by_sql("select id, created_at from commit_contributors where name='#{commiter['email']}'")
-
+      sql= ""
       if site.present?
         puts "commit_date====#{commit_date},created_at======#{site.first&.created_at}"
         if commit_date.to_i < site.first&.created_at.to_i
@@ -105,6 +107,7 @@ namespace :batch_add_contributors do
         sql = "INSERT INTO commit_contributors (`created_at`, `count`, `name`) VALUES ('#{commit_date_str}',1,'#{commiter['email']}')"
       end
       puts "sql====#{sql}"
+      next if sql.blank?
 
       sql_connection = ActiveRecord::Base.connection
       sql_connection.begin_db_transaction