Alfreton Town have signed winger John Johnston on an 18-month contract and extended goalkeeper George Willis' loan spell from Sheffield United.
Johnston, 20, played six league matches on loan for Alfreton before making his deal permanent on Saturday, following his release by Crewe Alexandra.
England Under-19 international Willis has made four appearances since arriving in December.
The 19-year-old will remain with the Conference side until 3 February.
Both players started in Alfreton's 1-1 draw against Torquay on Sunday.