diff --git a/cache.go b/cache.go
index 3d61038..b824664 100644
--- a/cache.go
+++ b/cache.go
@@ -4,6 +4,7 @@ import (
 	"encoding/binary"
 	"fmt"
 	"hash/crc32"
+	"io"
 	"os"
 	"path/filepath"
 	"sort"
@@ -47,12 +48,12 @@ func (self *cache) storeFile(context *Context, outputFile *File, inputFiles []*F
 	}
 	defer fp.Close()
 
-	offset, err := outputFile.Seek(0, os.SEEK_CUR)
+	offset, err := outputFile.Seek(0, io.SeekCurrent)
 	if err != nil {
 		return err
 	}
 
-	if _, err := outputFile.Seek(0, os.SEEK_SET); err != nil {
+	if _, err := outputFile.Seek(0, io.SeekStart); err != nil {
 		return err
 	}
 
@@ -60,7 +61,7 @@ func (self *cache) storeFile(context *Context, outputFile *File, inputFiles []*F
 		return err
 	}
 
-	if _, err := outputFile.Seek(offset, os.SEEK_SET); err != nil {
+	if _, err := outputFile.Seek(offset, io.SeekStart); err != nil {
 		return err
 	}
 
diff --git a/context.go b/context.go
index d3288c9..7a90044 100644
--- a/context.go
+++ b/context.go
@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"errors"
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -31,7 +30,7 @@ type Context struct {
 
 // CreateFileFrom data creates a new file instance from the provided data buffer.
 func (self *Context) CreateFileFromReader(sourcePath string, reader io.Reader) (*File, error) {
-	data, err := ioutil.ReadAll(reader)
+	data, err := io.ReadAll(reader)
 	if err != nil {
 		return nil, err
 	}
@@ -146,7 +145,7 @@ func (self *Context) step() {
 				defer wg.Done()
 				for inputFile := range self.filesIn {
 					if processor != nil && self.filtersInt.accept(inputFile) && self.filtersExt.accept(inputFile) {
-						if _, err := inputFile.Seek(0, os.SEEK_SET); err != nil {
+						if _, err := inputFile.Seek(0, io.SeekStart); err != nil {
 							self.goldsmith.fault("core", inputFile, err)
 						}
 						if err := processor.Process(self, inputFile); err != nil {
diff --git a/file.go b/file.go
index e1a92de..4fad164 100644
--- a/file.go
+++ b/file.go
@@ -3,7 +3,6 @@ package goldsmith
 import (
 	"bytes"
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"time"
@@ -31,7 +30,7 @@ func (self *File) Rename(path string) {
 }
 
 func (self *File) Rewrite(reader io.Reader) error {
-	data, err := ioutil.ReadAll(reader)
+	data, err := io.ReadAll(reader)
 	if err != nil {
 		return err
 	}
@@ -92,7 +91,7 @@ func (self *File) WriteTo(writer io.Writer) (int64, error) {
 
 // Seek updates the file pointer to the desired position.
 func (self *File) Seek(offset int64, whence int) (int64, error) {
-	if self.reader == nil && offset == 0 && (whence == os.SEEK_SET || whence == os.SEEK_CUR) {
+	if self.reader == nil && offset == 0 && (whence == io.SeekStart || whence == io.SeekCurrent) {
 		return 0, nil
 	}
 
@@ -163,7 +162,7 @@ func (self *File) export(targetDir string) error {
 			return err
 		}
 	} else {
-		if _, err := self.Seek(0, os.SEEK_SET); err != nil {
+		if _, err := self.Seek(0, io.SeekStart); err != nil {
 			return err
 		}
 
@@ -180,7 +179,7 @@ func (self *File) load() error {
 		return nil
 	}
 
-	data, err := ioutil.ReadFile(self.dataPath)
+	data, err := os.ReadFile(self.dataPath)
 	if err != nil {
 		return err
 	}