diff --git a/go.mod b/go.mod
index 25a7f37..69bf147 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,3 @@
 module github.com/gotracker/goaudiofile
 
-go 1.18
-
-require github.com/pkg/errors v0.9.1
+go 1.21
diff --git a/go.sum b/go.sum
index 7c401c3..e69de29 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +0,0 @@
-github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
-github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
diff --git a/music/tracked/s3m/instheader.go b/music/tracked/s3m/instheader.go
index e502281..f133504 100644
--- a/music/tracked/s3m/instheader.go
+++ b/music/tracked/s3m/instheader.go
@@ -2,10 +2,9 @@ package s3m
 
 import (
 	"encoding/binary"
+	"fmt"
 	"io"
 
-	"github.com/pkg/errors"
-
 	"github.com/gotracker/goaudiofile/internal/util"
 )
 
@@ -88,7 +87,7 @@ func ReadSCRS(r io.Reader) (*SCRS, error) {
 	case SCRSTypeOPL2Melody, SCRSTypeOPL2BassDrum, SCRSTypeOPL2Snare, SCRSTypeOPL2Tom, SCRSTypeOPL2Cymbal, SCRSTypeOPL2HiHat:
 		sh.Ancillary = &SCRSAdlibHeader{}
 	default:
-		return nil, errors.Errorf("unknown SCRS instrument type %0.2x", sh.Head.Type)
+		return nil, fmt.Errorf("unknown SCRS instrument type %0.2x", sh.Head.Type)
 	}
 
 	if sh.Ancillary != nil {