diff --git a/go.mod b/go.mod
index 34f49ae20..0d546f916 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@ require (
 	github.com/hajimehoshi/bitmapfont/v2 v2.1.3
 	github.com/hajimehoshi/file2byteslice v0.0.0-20200812174855-0e5e8a80490e
 	github.com/hajimehoshi/go-mp3 v0.3.2
-	github.com/hajimehoshi/oto/v2 v2.0.0-alpha.2
+	github.com/hajimehoshi/oto/v2 v2.1.0-alpha.0.20210912070225-cd6035b398d3
 	github.com/jakecoffman/cp v1.1.0
 	github.com/jfreymuth/oggvorbis v1.0.3
 	golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d
diff --git a/go.sum b/go.sum
index 32e57952e..6150a09bf 100644
--- a/go.sum
+++ b/go.sum
@@ -9,8 +9,8 @@ github.com/hajimehoshi/go-mp3 v0.3.2 h1:xSYNE2F3lxtOu9BRjCWHHceg7S91IHfXfXp5+LYQ
 github.com/hajimehoshi/go-mp3 v0.3.2/go.mod h1:qMJj/CSDxx6CGHiZeCgbiq2DSUkbK0UbtXShQcnfyMM=
 github.com/hajimehoshi/oto v0.6.1 h1:7cJz/zRQV4aJvMSSRqzN2TImoVVMpE0BCY4nrNJaDOM=
 github.com/hajimehoshi/oto v0.6.1/go.mod h1:0QXGEkbuJRohbJaxr7ZQSxnju7hEhseiPx2hrh6raOI=
-github.com/hajimehoshi/oto/v2 v2.0.0-alpha.2 h1:afKKJ3yH3FARLSwLGukFVMgcA4U9wHBJbkbR2ARjFDA=
-github.com/hajimehoshi/oto/v2 v2.0.0-alpha.2/go.mod h1:rUKQmwMkqmRxe+IAof9+tuYA2ofm8cAWXFmSfzDN8vQ=
+github.com/hajimehoshi/oto/v2 v2.1.0-alpha.0.20210912070225-cd6035b398d3 h1:Jq3vWz8FQi2t8Bt4LTFa5GTenQ+NJz/WLW8ih+KS2jA=
+github.com/hajimehoshi/oto/v2 v2.1.0-alpha.0.20210912070225-cd6035b398d3/go.mod h1:rUKQmwMkqmRxe+IAof9+tuYA2ofm8cAWXFmSfzDN8vQ=
 github.com/jakecoffman/cp v1.1.0 h1:bhKvCNbAddYegYHSV5abG3G23vZdsISgqXa4X/lK8Oo=
 github.com/jakecoffman/cp v1.1.0/go.mod h1:JjY/Fp6d8E1CHnu74gWNnU0+b9VzEdUVPoJxg2PsTQg=
 github.com/jfreymuth/oggvorbis v1.0.3 h1:MLNGGyhOMiVcvea9Dp5+gbs2SAwqwQbtrWnonYa0M0Y=