The 26-year-old guided his side to second position in the Bulgarian league after scoring 13 goals in 30 appearances last season.
The Scorpions striker’s last season performance also helped CSKA Sofia participate in the UEFA Europa League tournament.
Sowe who recently marked his 100th appearance for the Bulgarian side with a brilliant solo-goal against arch rival Levski has scored 28 goals in total in 61 appearances for CSKA Sofia.
The Serekunda-born player who is contracted with CSKA Sofia until 2022 has been attracting interest from some of European top clubs during the summer due to his fine performance last season.
The former Gamtel striker started his professional career with Italian side Chievo in 2013 and later underwent on several loans to other clubs before signing a permanent contract with CSKA Sofia in 2019.