Monaco moved back to the top of Ligue 1 on goal difference after a late strike from Frederic Sammaritano earned Dijon a 1-1 draw.
Monaco kept up their outstanding recent form as Valere Germain scored twice in a 4-0 win over Marseille on Saturday.
Radamel Falcao was on target as Monaco went top of Ligue 1 with a 3-0 win at bottom side Lorient while Lyon went fourth.
Monaco trimmed Nice's lead at the top of Ligue 1 to three points as Leonardo Jardim's side thrashed Nancy 6-0.
Monaco missed the chance to close the gap on Ligue 1 leaders Nice while Alexandre Lacazette scored twice for Lyon.
Laurent Koscielny says he will see out his career with Arsenal or Lorient