请问如何单独升级某个软件包?

reddemon

大家好我是一名新手我现在想单独升级某个软件包该如何操作？
Depends: libgcc1 (>= 1:4.0.0-9) but 1:3.4.3-13 is to be installed
  Depends: libstdc++6 (>= 4.0.1) but it is not going to be installed
  Depends: libwxgtk2.6-0 (>= 2.6.1.2) but it is not going to be installed