If your engagement point is getting higher, then I suspect clutch wear. If your engagement point were going lower, and eventually to the point where the clutch would no longer engage, then I'd say either the master or slave cylinder, or even a clutch line. I don't think there's anything to worry about, but you can adjust the engagement point with the master cylinder pushrod.
If you want your engagement point lower, turn the pushrod to the left (after loosening the 12mm nut). The pedal won't feel that great, but you can also adjust the pedal height to fix that, as well.
For instructions, if you need them:
Online BGB