diff --git a/media/BGM/beat5th.ogg b/media/BGM/beat5th.ogg
new file mode 100644
index 00000000..c228ce0d
Binary files /dev/null and b/media/BGM/beat5th.ogg differ
diff --git a/parts/modes/sprintPenta.lua b/parts/modes/sprintPenta.lua
index 5468b8e9..ab6d1baf 100644
--- a/parts/modes/sprintPenta.lua
+++ b/parts/modes/sprintPenta.lua
@@ -4,7 +4,7 @@ return{
 		drop=60,lock=60,
 		sequence='bag',seqData={8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25},
 		dropPiece=function(P)if P.stat.row>=40 then P:win('finish')end end,
-		bg='aura',bgm='waterfall',
+		bg='aura',bgm='beat5th',
 	},
 	load=function()
 		PLY.newPlayer(1)