diff --git a/app/config.go b/app/config.go
index 2d145e6..b96a6c7 100644
--- a/app/config.go
+++ b/app/config.go
@@ -2,7 +2,6 @@ package app
 
 import (
 	"encoding/json"
-	"io/ioutil"
 	"mapserver/layer"
 	"os"
 	"runtime"
@@ -132,7 +131,7 @@ func ParseConfig(filename string) (*Config, error) {
 
 	info, err := os.Stat(filename)
 	if info != nil && err == nil {
-		data, err := ioutil.ReadFile(filename)
+		data, err := os.ReadFile(filename)
 		if err != nil {
 			return nil, err
 		}
diff --git a/app/setup.go b/app/setup.go
index dd64c18..1e1fe22 100644
--- a/app/setup.go
+++ b/app/setup.go
@@ -19,7 +19,6 @@ import (
 
 	"github.com/minetest-go/colormapping"
 
-	"io/ioutil"
 	"os"
 
 	"github.com/sirupsen/logrus"
@@ -104,7 +103,7 @@ func Setup(p params.ParamsType, cfg *Config) *App {
 	if info != nil && err == nil {
 		logrus.WithFields(logrus.Fields{"filename": "colors.txt"}).Info("Loading colors from filesystem")
 
-		data, err := ioutil.ReadFile("colors.txt")
+		data, err := os.ReadFile("colors.txt")
 		if err != nil {
 			panic(err)
 		}
diff --git a/areasparser/parser.go b/areasparser/parser.go
index 558f6e2..3360aa8 100644
--- a/areasparser/parser.go
+++ b/areasparser/parser.go
@@ -3,7 +3,7 @@ package areasparser
 import (
 	"bytes"
 	"encoding/json"
-	"io/ioutil"
+	"os"
 )
 
 type GenericPos struct {
@@ -41,7 +41,7 @@ func (pos *GenericPos) UnmarshalJSON(data []byte) error {
 }
 
 func ParseFile(filename string) ([]*Area, error) {
-	content, err := ioutil.ReadFile(filename)
+	content, err := os.ReadFile(filename)
 	if err != nil {
 		return nil, err
 	}
diff --git a/tiledb/tiledb.go b/tiledb/tiledb.go
index c1a5f8e..f1fb111 100644
--- a/tiledb/tiledb.go
+++ b/tiledb/tiledb.go
@@ -46,7 +46,7 @@ func (this *TileDB) GetTile(pos *coords.TileCoords) ([]byte, error) {
 	_, file := this.getDirAndFile(pos)
 	info, _ := os.Stat(file)
 	if info != nil {
-		content, err := ioutil.ReadFile(file)
+		content, err := os.ReadFile(file)
 		if err != nil {
 			panic(err)
 		}
diff --git a/travelnetparser/parser.go b/travelnetparser/parser.go
index 5a226b3..d6341c2 100644
--- a/travelnetparser/parser.go
+++ b/travelnetparser/parser.go
@@ -3,8 +3,8 @@ package travelnetparser
 import (
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"mapserver/luaparser"
+	"os"
 )
 
 type GenericPos struct {
@@ -19,7 +19,7 @@ type Travelnet struct {
 }
 
 func ParseFile(filename string) (map[string]map[string]map[string]*Travelnet, error) {
-	content, err := ioutil.ReadFile(filename)
+	content, err := os.ReadFile(filename)
 	if err != nil {
 		return nil, err
 	}