There are many ways to install Sublime Text 3.
I installed Sublime Text 3 during the time when the apt package is not available (sudo apt-get install sublime-text), so I installed Sublime Text 3 manually using tarball instead.
Find the directory when you installed Sublime Text 3.
ls -l /usr/bin/sublime*Change to the install directory.
cd <INSTALL_DIR>Download the latest tarball.
wget https://download.sublimetext.com/sublime_text_3_build_3207_x64.tar.bz2Backup the old directory in case the new version has problem.
mv sublime_text_3 sublime_text_3_3200Unzip the tarball
tar vxjf sublime_text_3_build_3207_x64.tar.bz2Restart Sublime Text