Dickov, who was rested by manager Berti Vogts for Scotlands last international friendly against Romania last month, returns to the squad for the game on Wednesday, 28th April.
Canero, along with Nigel Quasie and Malky Mackay, is one of three new faces in the squad.
Scotland Squad: R Douglas (Celtic), P Gallacher (Dundee United), C Gordon (Hearts); G Alexander (Preston), G Caldwell (Hibernian), S Caldwell (Newcastle), S Crainey (Southampton), C Dailly (West Ham), M Mackay (Norwich), J McNamara (Celtic), S Pressley (Hearts), A Webster (Hearts); C Cameron (Wolves), P Canero (Leicester), D Fletcher (Man Utd), G Holt (Norwich), S Pearson (Celtic), N Quashie (Portsmouth), G Rae (Rangers); S Crawford (Dunfermline), P Dickov (Leicester), K Kyle (Sunderland), N McCann (Southampton), J McFadden (Everton), K Miller (Wolves), S Thompson (Rangers).