diff --git a/go.mod b/go.mod
index 974335358..a64c02700 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@ require (
 	github.com/hajimehoshi/bitmapfont/v2 v2.1.3
 	github.com/hajimehoshi/file2byteslice v0.0.0-20210813153925-5340248a8f41
 	github.com/hajimehoshi/go-mp3 v0.3.2
-	github.com/hajimehoshi/oto/v2 v2.1.0-alpha.3.0.20211103161657-c22435daf095
+	github.com/hajimehoshi/oto/v2 v2.1.0-alpha.4
 	github.com/jakecoffman/cp v1.1.0
 	github.com/jezek/xgb v0.0.0-20210312150743-0e0f116e1240
 	github.com/jfreymuth/oggvorbis v1.0.3
diff --git a/go.sum b/go.sum
index c1cfdce15..74eb81897 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 v2.1.0-alpha.3.0.20211103161657-c22435daf095 h1:2zR4dQG2pohTybpjvHcLmxtjJyB+xADeprqzmdGL2Yo=
-github.com/hajimehoshi/oto/v2 v2.1.0-alpha.3.0.20211103161657-c22435daf095/go.mod h1:rUKQmwMkqmRxe+IAof9+tuYA2ofm8cAWXFmSfzDN8vQ=
+github.com/hajimehoshi/oto/v2 v2.1.0-alpha.4 h1:6NIzk6tIJIOUB7mB00FtE5pz0Yt9LDBPcGirBIteJsI=
+github.com/hajimehoshi/oto/v2 v2.1.0-alpha.4/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/jezek/xgb v0.0.0-20210312150743-0e0f116e1240 h1:dy+DS31tGEGCsZzB45HmJJNHjur8GDgtRNX9U7HnSX4=