Midfielder Danny Shelley and defender Adam Dugdale have signed new contracts at Crewe.
Shelley, 20, has signed a one-year deal to take him through to the summer of 2012.
Dugdale returned for a second spell at Alex in the summer and signed a six-month contract. That deal was due to expire on January 22 but the 23-year-old will now remain at Gresty Road until the end of the season.
The duo follow AJ Leitch-Smith, Shaun Miller, Luke Murphy, Matt Tootle and Ashley Westwood in signing new contracts this season.