diff --git a/install.sh b/install.sh
index 5e6150f..fa7debb 100755
--- a/install.sh
+++ b/install.sh
@@ -12,7 +12,7 @@ fi
 
 # download
 echo "downloading..."
-wget -q -O - https://github.com/ali77gh/shecan-cli/releases/download/1.2.0/shecan.py > temp.py
+wget -q -O - https://github.com/ali77gh/shecan-cli/releases/download/1.2.1/shecan.py > temp.py
 echo "done"
 
 # copy
diff --git a/shecan.py b/shecan.py
index 55bf883..eae5286 100755
--- a/shecan.py
+++ b/shecan.py
@@ -99,7 +99,7 @@ def local_status() -> bool:
     def enable():
         # backup
         result = os.popen(f"networksetup -getdnsservers {interface}").read()
-        f = open(dns_file_bak,"w")
+        f = open(dns_file_bak_mac,"w")
         f.write(result)
 
         # enable
@@ -108,7 +108,7 @@ def enable():
 
     @staticmethod
     def disable():
-        f = open(dns_file_bak,"r")
+        f = open(dns_file_bak_mac,"r")
         old_dns = f.read()
         os.system(f"networksetup -setdnsservers {interface} {old_dns}")
         pass