How to show "npm outdated" current != wanted lines only?

When I type npm outdated it displays something similar to

Package      Current   Wanted    Latest  Location
columnify      1.1.0    1.1.0     1.2.1  /usr/local/lib > npm > columnify
cmd-shim       1.1.2    1.1.2     2.0.0  /usr/local/lib > npm > cmd-shim
...

I do not care much about cases when "Current" is the same as "Wanted". Is there a way to filter this?

npm outdated | awk '$2!=$3' will do what you want.