Why doesn't bower update update the dependency version in bower.json, and how can I do that?

Question

bower

I install the version of the jacquery, 2.0.3for example , I

add it ^before the version number and try to update - the latest version is installed that matches the rule in bower.json, but nothing changes in the bower.json file. I

replace the version with latest- it updates to the newest, but again the file does not change

. in bower.jsonor how to use this file in general?