diff --git a/cmd/crunchyroll-go/cmd/login.go b/cmd/crunchyroll-go/cmd/login.go
index fa55020..3bd4004 100644
--- a/cmd/crunchyroll-go/cmd/login.go
+++ b/cmd/crunchyroll-go/cmd/login.go
@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"github.com/ByteDream/crunchyroll-go"
 	"github.com/spf13/cobra"
-	"io/ioutil"
 	"os"
 	"os/user"
 	"path/filepath"
@@ -46,7 +45,7 @@ func loginCredentials(user, password string) error {
 		os.Exit(1)
 	}
 
-	return ioutil.WriteFile(loginStorePath(), []byte(fmt.Sprintf("%s\n%s", user, password)), 0600)
+	return os.WriteFile(loginStorePath(), []byte(fmt.Sprintf("%s\n%s", user, password)), 0600)
 }
 
 func loginSessionID(sessionID string) error {
@@ -56,7 +55,7 @@ func loginSessionID(sessionID string) error {
 		os.Exit(1)
 	}
 
-	return ioutil.WriteFile(loginStorePath(), []byte(sessionID), 0600)
+	return os.WriteFile(loginStorePath(), []byte(sessionID), 0600)
 }
 
 func loginStorePath() string {
diff --git a/crunchyroll.go b/crunchyroll.go
index 8c456a4..f59fb30 100644
--- a/crunchyroll.go
+++ b/crunchyroll.go
@@ -5,7 +5,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/url"
 	"regexp"
@@ -68,7 +68,7 @@ func LoginWithCredentials(user string, password string, locale LOCALE, client *h
 	defer sessResp.Body.Close()
 
 	var data map[string]interface{}
-	body, _ := ioutil.ReadAll(sessResp.Body)
+	body, _ := io.ReadAll(sessResp.Body)
 	json.Unmarshal(body, &data)
 
 	sessionID := data["data"].(map[string]interface{})["session_id"].(string)
@@ -211,7 +211,7 @@ func (c *Crunchyroll) request(endpoint string) (*http.Response, error) {
 
 	resp, err := c.Client.Do(req)
 	if err == nil {
-		bodyAsBytes, _ := ioutil.ReadAll(resp.Body)
+		bodyAsBytes, _ := io.ReadAll(resp.Body)
 		defer resp.Body.Close()
 		if resp.StatusCode == http.StatusUnauthorized {
 			return nil, &AccessError{
@@ -231,7 +231,7 @@ func (c *Crunchyroll) request(endpoint string) (*http.Response, error) {
 				}
 			}
 		}
-		resp.Body = ioutil.NopCloser(bytes.NewBuffer(bodyAsBytes))
+		resp.Body = io.NopCloser(bytes.NewBuffer(bodyAsBytes))
 	}
 	return resp, err
 }
diff --git a/downloader.go b/downloader.go
index 48460c3..8c0278b 100644
--- a/downloader.go
+++ b/downloader.go
@@ -8,7 +8,6 @@ import (
 	"fmt"
 	"github.com/grafov/m3u8"
 	"io"
-	"io/ioutil"
 	"math"
 	"net/http"
 	"os"
@@ -324,7 +323,7 @@ func getCrypt(format *Format, segment *m3u8.MediaSegment) (block cipher.Block, i
 		return nil, nil, err
 	}
 	defer resp.Body.Close()
-	key, err := ioutil.ReadAll(resp.Body)
+	key, err := io.ReadAll(resp.Body)
 
 	block, err = aes.NewCipher(key)
 	if err != nil {
@@ -372,7 +371,7 @@ func (d Downloader) decryptSegment(client *http.Client, segment *m3u8.MediaSegme
 	}
 	defer resp.Body.Close()
 
-	raw, err := ioutil.ReadAll(resp.Body)
+	raw, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}