diff --git a/check_update.sh b/check_update.sh
index 0eee2fc..4455167 100755
--- a/check_update.sh
+++ b/check_update.sh
@@ -28,12 +28,12 @@ done
 
 str=$(IFS=,; echo "${ar2[*]}")
 
-chmod 777 csv/system_info.json
+sudo chmod 777 csv/system_info.json
 rm csv/system_info.json
 
 echo "$str" >> csv/system_info.json
 
-chmod 777 csv/system_info.json
+sudo chmod 777 csv/system_info.json