diff --git a/right_coin.lua b/right_coin.lua
index 789d8db..5d45019 100644
--- a/right_coin.lua
+++ b/right_coin.lua
@@ -440,7 +440,7 @@ function updateGame()
 	p:update()
 
 	-- Coin market
-	valueBlue=math.floor((math.sin(t/100)+1)*10)/10
+	valueBlue=math.floor((math.sin(t/200)+1)*50)/10
 	if t%60 == 0 then
 		valueRed=math.random(0,99)/10
 	end