Regulars Oli McBurnie and Scott McKenna have been drafted into the senior set-up, but Gemmill’s group have been boosted by the return to fitness of Anthony Ralston.
There are first call-ups at this level for Chelsea winger Harvey St Clair, Dundee United goalkeeper Josh Donaldson and MK Dons frontman Robbie Muirhead.
Gemmill will be joined on the touchline by his new assistant, the vastly experienced Peter Houston, after Peter Grant also linked up with Alex McLeish.
On Houston’s arrival, he said: “I’m delighted that Peter has agreed to join us and it will be great to have him on board in Andorra.
“Peter’s experienced, well-liked and respected and knows the international game inside-out.
“He will be a valuable addition to the team.”
Fixture
Andorra v Scotland, Friday 23 March, kick-off 6pm (local time), Estadi Comunal, Andorra la Vella.
Scotland Squad
Josh Donaldson (Dundee United)
Ross Doohan (Celtic)
Ryan Fulton (Hamilton)
Jason Kerr (St Johnstone)
John Souttar (Heart of Midlothian)
Calvin Miller (Celtic)
Anthony Ralston (Celtic)
Liam Smith (Heart of Midlothian*)
Greg Taylor (Kilmarnock)
Iain Wilson (Kilmarnock)
Liam Burt (Rangers****)
Allan Campbell (Motherwell)
Chris Cadden (Motherwell)
Greg Docherty (Rangers)
Kyle Magennis (St Mirren)
Stephen Mallan (Barnsley)
Lewis Morgan (Celtic***)
Harvey St Clair (Chelsea)
Eamonn Brophy (Kilmarnock)
Oliver Burke (West Bromwich Albion)
Ryan Hardie (Rangers**)
Robbie Muirhead (MK Dons)
Scott Wright (Aberdeen)
*On loan to St Mirren
**On loan to Livingston
***On loan to St Mirren
****On loan to Dumbarton