diff --git a/go.mod b/go.mod
index 85c8fc93..77b9967c 100644
--- a/go.mod
+++ b/go.mod
@@ -6,11 +6,10 @@ require (
 	github.com/JoshVarga/blast v0.0.0-20180421040937-681c804fb9f0
 	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
 	github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d // indirect
-	github.com/davecgh/go-spew v1.1.0
 	github.com/go-restruct/restruct v1.2.0-alpha
 	github.com/google/uuid v1.1.2
 	github.com/gravestench/akara v0.0.0-20201014060234-a64208a7fd3c
-	github.com/hajimehoshi/ebiten/v2 v2.0.0
+	github.com/hajimehoshi/ebiten/v2 v2.0.2
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pkg/profile v1.5.0
 	github.com/robertkrimen/otto v0.0.0-20200922221731-ef014fd054ac
diff --git a/go.sum b/go.sum
index 45038abc..22724eaa 100644
--- a/go.sum
+++ b/go.sum
@@ -20,13 +20,13 @@ github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+
 github.com/gravestench/akara v0.0.0-20201014060234-a64208a7fd3c h1:WopE590cKxkcKXcOee4gPXHqtzwbarLClCaWNCdLqgI=
 github.com/gravestench/akara v0.0.0-20201014060234-a64208a7fd3c/go.mod h1:fTeda1SogMg5Lkd4lXMEd/Pk/a5/gQuLGaAI2rn1PBQ=
 github.com/hajimehoshi/bitmapfont/v2 v2.1.0/go.mod h1:2BnYrkTQGThpr/CY6LorYtt/zEPNzvE/ND69CRTaHMs=
-github.com/hajimehoshi/ebiten/v2 v2.0.0 h1:G8mhkKFtnDPPZ/ChaGWx4Bm0NusYEcafGCJ8QLxEaYs=
-github.com/hajimehoshi/ebiten/v2 v2.0.0/go.mod h1:hpZZQ/kk8DZqft7QsQ5hZLRQXHSZPdKnaa0tcJ3CZFE=
+github.com/hajimehoshi/ebiten/v2 v2.0.2 h1:t8HXO9hJfKlS9tNhht8Ov6xecag0gRl7AkfKgC9hcLE=
+github.com/hajimehoshi/ebiten/v2 v2.0.2/go.mod h1:AbHP/SS226aFTex/izULVwW0D2AuGyqC4AVwilmRjOg=
 github.com/hajimehoshi/file2byteslice v0.0.0-20200812174855-0e5e8a80490e/go.mod h1:CqqAHp7Dk/AqQiwuhV1yT2334qbA/tFWQW0MD2dGqUE=
 github.com/hajimehoshi/go-mp3 v0.3.1/go.mod h1:qMJj/CSDxx6CGHiZeCgbiq2DSUkbK0UbtXShQcnfyMM=
 github.com/hajimehoshi/oto v0.6.1/go.mod h1:0QXGEkbuJRohbJaxr7ZQSxnju7hEhseiPx2hrh6raOI=
-github.com/hajimehoshi/oto v0.6.6 h1:HYSZ8cYZqOL4iHugvbcfhNN2smiSOsBMaoSBi4nnWcw=
-github.com/hajimehoshi/oto v0.6.6/go.mod h1:0QXGEkbuJRohbJaxr7ZQSxnju7hEhseiPx2hrh6raOI=
+github.com/hajimehoshi/oto v0.6.8 h1:yRb3EJQ4lAkBgZYheqmdH6Lr77RV9nSWFsK/jwWdTNY=
+github.com/hajimehoshi/oto v0.6.8/go.mod h1:0QXGEkbuJRohbJaxr7ZQSxnju7hEhseiPx2hrh6raOI=
 github.com/jakecoffman/cp v1.0.0/go.mod h1:JjY/Fp6d8E1CHnu74gWNnU0+b9VzEdUVPoJxg2PsTQg=
 github.com/jfreymuth/oggvorbis v1.0.1/go.mod h1:NqS+K+UXKje0FUYUPosyQ+XTVvjmVjps1aEZH1sumIk=
 github.com/jfreymuth/vorbis v1.0.0/go.mod h1:8zy3lUAm9K/rJJk223RKy6vjCZTWC61NA2QD06bfOE0=