how to change the version to 2.5.0

[ghost]

I have used your script and it worked flawlessly. Now I had installed latest apktool by the command apt-get install apktool and it was installed. But, after running the script it installed apktool 2.4.x and now I want to change to apktool 2.5.0 to work on some other applications. if I type apktool --version it displays 2.4.1 and when I type apt-get install apktool "apktool is already the newest version (2.5.0+dfsg.1-2)." Please help me solve this ambiguity.