diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1526ebd7d..b016e0433 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,7 +14,7 @@ jobs:
       - name: Setup Golang
         uses: actions/setup-go@v4
         with:
-          go-version: ~1.20.5
+          go-version: ~1.20.6
 
       - uses: actions/cache@v3
         with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index daa84eef6..3e56ecc16 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,7 +13,7 @@ jobs:
       - name: Setup Golang
         uses: actions/setup-go@v4
         with:
-          go-version: ~1.20.5
+          go-version: ~1.20.6
 
       - uses: actions/cache@v3
         with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3c7e33452..c5246375e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,7 +12,7 @@ jobs:
       - name: Setup Golang
         uses: actions/setup-go@v4
         with:
-          go-version: ~1.20.5
+          go-version: ~1.20.6
 
       - uses: actions/cache@v3
         with:
diff --git a/build/base.go b/build/base.go
index dbabe22ea..361d39216 100644
--- a/build/base.go
+++ b/build/base.go
@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"github.com/markbates/pkger"
 	"io"
-	"io/ioutil"
 	"log"
 	"net"
 	"net/http"
@@ -54,12 +53,12 @@ func (bs *BrowserSource) Prepare() (string, string, error) {
 		if err != nil {
 			return "", "", fmt.Errorf("download file: %v", err)
 		}
-		f, err := ioutil.TempFile("", "images")
+		f, err := os.CreateTemp("", "images")
 		if err != nil {
 			return "", "", fmt.Errorf("temporary file: %v", err)
 		}
 		outputFileName := f.Name()
-		err = ioutil.WriteFile(outputFileName, data, 0644)
+		err = os.WriteFile(outputFileName, data, 0644)
 		if err != nil {
 			return "", "", fmt.Errorf("save downloaded file: %v", err)
 		}
@@ -131,7 +130,7 @@ func requireCommand(cmd string) bool {
 }
 
 func tmpDir() (string, error) {
-	dir, err := ioutil.TempDir("", "images")
+	dir, err := os.MkdirTemp("", "images")
 	if err != nil {
 		return "", fmt.Errorf("create temporary dir: %v", err)
 	}
diff --git a/build/file.go b/build/file.go
index e7a949f38..4c7dcc285 100644
--- a/build/file.go
+++ b/build/file.go
@@ -11,7 +11,6 @@ import (
 	"fmt"
 	"gopkg.in/cheggaaa/pb.v1"
 	"io"
-	"io/ioutil"
 	"log"
 	"net/http"
 	"os"
@@ -95,7 +94,7 @@ func extractFile(data []byte, filename string, outputDir string) (string, error)
 		return untar(data, filename, outputDir)
 	} else {
 		outputPath := filepath.Join(outputDir, filename)
-		err := ioutil.WriteFile(outputPath, data, os.ModePerm)
+		err := os.WriteFile(outputPath, data, os.ModePerm)
 		if err != nil {
 			return "", fmt.Errorf("failed to save file %s: %v", outputPath, err)
 		}
@@ -214,7 +213,7 @@ func doSendGet(url string, token string) ([]byte, error) {
 	if resp.StatusCode != http.StatusOK {
 		return nil, fmt.Errorf("unsuccessful response: %d %s", resp.StatusCode, resp.Status)
 	}
-	data, err := ioutil.ReadAll(resp.Body)
+	data, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return nil, fmt.Errorf("read response body: %v", err)
 	}
diff --git a/build/file_test.go b/build/file_test.go
index 0e4a4355c..5f04fdfe0 100644
--- a/build/file_test.go
+++ b/build/file_test.go
@@ -2,7 +2,6 @@ package build
 
 import (
 	. "github.com/aandryashin/matchers"
-	"io/ioutil"
 	"os"
 	"testing"
 )
@@ -26,7 +25,7 @@ func TestUntar(t *testing.T) {
 }
 
 func withTmpDir(t *testing.T, prefix string, fn func(*testing.T, string)) {
-	dir, err := ioutil.TempDir("", prefix)
+	dir, err := os.MkdirTemp("", prefix)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -56,10 +55,9 @@ func testUnpack(t *testing.T, data []byte, fileName string, fn func([]byte, stri
 }
 
 func readFile(t *testing.T, fileName string) []byte {
-	data, err := ioutil.ReadFile(fileName)
+	data, err := os.ReadFile(fileName)
 	if err != nil {
 		t.Fatal(err)
 	}
 	return data
 }
-
diff --git a/build/firefox.go b/build/firefox.go
index b0b508b07..40cebbeb7 100644
--- a/build/firefox.go
+++ b/build/firefox.go
@@ -3,7 +3,6 @@ package build
 import (
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strconv"
@@ -106,12 +105,12 @@ func (c *Firefox) Build() error {
 		image.Labels = labels
 
 		browsersJsonFile := filepath.Join(image.Dir, "browsers.json")
-		data, err := ioutil.ReadFile(browsersJsonFile)
+		data, err := os.ReadFile(browsersJsonFile)
 		if err != nil {
 			return fmt.Errorf("failed to read browsers.json: %v", err)
 		}
 		newContents := strings.Replace(string(data), "@@VERSION@@", firefoxMajorMinorVersion, -1)
-		err = ioutil.WriteFile(browsersJsonFile, []byte(newContents), 0)
+		err = os.WriteFile(browsersJsonFile, []byte(newContents), 0)
 		if err != nil {
 			return fmt.Errorf("failed to update browsers.json: %v", err)
 		}
@@ -188,7 +187,7 @@ func (c *Firefox) downloadSelenoid(dir string) (string, error) {
 		return "", fmt.Errorf("download Selenoid: %v", err)
 	}
 	outputPath := filepath.Join(dir, "selenoid")
-	err = ioutil.WriteFile(outputPath, data, 0755)
+	err = os.WriteFile(outputPath, data, 0755)
 	if err != nil {
 		return "", fmt.Errorf("save Selenoid: %v", err)
 	}
@@ -219,7 +218,7 @@ func (c *Firefox) downloadSeleniumJAR(dir string) (string, error) {
 		return "", fmt.Errorf("download Selenium JAR: %v", err)
 	}
 	outputPath := filepath.Join(dir, "selenium-server-standalone.jar")
-	err = ioutil.WriteFile(outputPath, data, 0644)
+	err = os.WriteFile(outputPath, data, 0644)
 	if err != nil {
 		return "", fmt.Errorf("save Selenium JAR: %v", err)
 	}
diff --git a/selenium/base/fileserver/main.go b/selenium/base/fileserver/main.go
index 1790ab0ed..735ecdb16 100644
--- a/selenium/base/fileserver/main.go
+++ b/selenium/base/fileserver/main.go
@@ -3,7 +3,7 @@ package main
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io/fs"
 	"log"
 	"net/http"
 	"os"
@@ -52,7 +52,21 @@ func mux(dir string) http.Handler {
 }
 
 func listFilesAsJson(w http.ResponseWriter, dir string) {
-	files, err := ioutil.ReadDir(dir)
+
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	files := make([]fs.FileInfo, 0, len(entries))
+	for _, entry := range entries {
+		info, err := entry.Info()
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		files = append(files, info)
+	}
 	sort.Slice(files, func(i, j int) bool {
 		return files[i].ModTime().After(files[j].ModTime())
 	})
@@ -65,7 +79,7 @@ func listFilesAsJson(w http.ResponseWriter, dir string) {
 		ret = append(ret, f.Name())
 	}
 	w.Header().Add("Content-Type", "application/json")
-	json.NewEncoder(w).Encode(ret)
+	_ = json.NewEncoder(w).Encode(ret)
 }
 
 func deleteFileIfExists(w http.ResponseWriter, r *http.Request, dir string) {
diff --git a/selenium/base/fileserver/main_test.go b/selenium/base/fileserver/main_test.go
index 465c4acc3..6193d71e6 100644
--- a/selenium/base/fileserver/main_test.go
+++ b/selenium/base/fileserver/main_test.go
@@ -3,7 +3,6 @@ package main
 import (
 	. "github.com/aandryashin/matchers"
 	. "github.com/aandryashin/matchers/httpresp"
-	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -17,7 +16,7 @@ var (
 )
 
 func init() {
-	dir, _ = ioutil.TempDir("", "fileserver")
+	dir, _ = os.MkdirTemp("", "fileserver")
 	srv = httptest.NewServer(mux(dir))
 }
 
@@ -26,8 +25,8 @@ func withUrl(path string) string {
 }
 
 func TestDownloadAndRemoveFile(t *testing.T) {
-	tempFile, _ := ioutil.TempFile(dir, "fileserver")
-	ioutil.WriteFile(tempFile.Name(), []byte("test-data"), 0644)
+	tempFile, _ := os.CreateTemp(dir, "fileserver")
+	_ = os.WriteFile(tempFile.Name(), []byte("test-data"), 0644)
 	tempFileName := filepath.Base(tempFile.Name())
 	resp, err := http.Get(withUrl("/" + tempFileName))
 	AssertThat(t, err, Is{nil})
@@ -42,7 +41,7 @@ func TestDownloadAndRemoveFile(t *testing.T) {
 	AssertThat(t, rsp, IsJson{&files})
 	AssertThat(t, files, EqualTo{[]string{tempFileName}})
 
-	req, _ := http.NewRequest(http.MethodDelete, withUrl("/" + tempFileName), nil)
+	req, _ := http.NewRequest(http.MethodDelete, withUrl("/"+tempFileName), nil)
 	resp, err = http.DefaultClient.Do(req)
 	AssertThat(t, err, Is{nil})
 	AssertThat(t, resp, Code{200})
diff --git a/static/chrome/devtools/devtools.go b/static/chrome/devtools/devtools.go
index 438c61f6d..7d3e9aacb 100644
--- a/static/chrome/devtools/devtools.go
+++ b/static/chrome/devtools/devtools.go
@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"github.com/mafredri/cdp/devtool"
-	"io/ioutil"
 	"log"
 	"net/http"
 	"net/http/httputil"
@@ -19,7 +18,7 @@ import (
 
 const (
 	devtoolsBaseDir = "/tmp"
-	slash = "/"
+	slash           = "/"
 )
 
 var (
@@ -79,9 +78,9 @@ func protocol(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	u := &url.URL{
-		Host: h,
+		Host:   h,
 		Scheme: "http",
-		Path: "/json/protocol",
+		Path:   "/json/protocol",
 	}
 	log.Printf("[PROTOCOL] [%s]", u.String())
 	(&httputil.ReverseProxy{
@@ -143,7 +142,7 @@ func devtoolsHost() (string, error) {
 
 func androidDevtoolsHost() (string, error) {
 	const androidDevtoolsPort = 9333
-	cmd := exec.Command("adb", "forward",  fmt.Sprintf("tcp:%d", androidDevtoolsPort), "localabstract:chrome_devtools_remote")
+	cmd := exec.Command("adb", "forward", fmt.Sprintf("tcp:%d", androidDevtoolsPort), "localabstract:chrome_devtools_remote")
 	err := cmd.Run()
 	if err != nil {
 		return "", fmt.Errorf("failed to forward devtools port: %v", err)
@@ -175,7 +174,7 @@ func detectDevtoolsHost(baseDir string) string {
 			continue
 		}
 		portFile := filepath.Join(c, "DevToolsActivePort")
-		data, err := ioutil.ReadFile(portFile)
+		data, err := os.ReadFile(portFile)
 		if err != nil {
 			continue
 		}
diff --git a/static/chrome/devtools/devtools_test.go b/static/chrome/devtools/devtools_test.go
index 2938b9531..737c469c7 100644
--- a/static/chrome/devtools/devtools_test.go
+++ b/static/chrome/devtools/devtools_test.go
@@ -10,7 +10,6 @@ import (
 	"github.com/mafredri/cdp"
 	"github.com/mafredri/cdp/protocol/target"
 	"github.com/mafredri/cdp/rpcc"
-	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -165,12 +164,12 @@ func TestDevtools(t *testing.T) {
 }
 
 func TestDetectDevtoolsHost(t *testing.T) {
-	name, _ := ioutil.TempDir("", "devtools")
+	name, _ := os.MkdirTemp("", "devtools")
 	defer os.RemoveAll(name)
 	profilePath := filepath.Join(name, ".org.chromium.Chromium.deadbee")
-	os.MkdirAll(profilePath, os.ModePerm)
+	_ = os.MkdirAll(profilePath, os.ModePerm)
 	portFile := filepath.Join(profilePath, "DevToolsActivePort")
-	ioutil.WriteFile(portFile, []byte("12345\n/devtools/browser/6f37c7fe-a0a6-4346-a6e2-80c5da0687f0"), 0644)
+	_ = os.WriteFile(portFile, []byte("12345\n/devtools/browser/6f37c7fe-a0a6-4346-a6e2-80c5da0687f0"), 0644)
 
 	AssertThat(t, detectDevtoolsHost(name), EqualTo{"127.0.0.1:12345"})
 }
diff --git a/static/safari/cmd/prism/go.mod b/static/safari/cmd/prism/go.mod
index a8141c280..c257ddadb 100644
--- a/static/safari/cmd/prism/go.mod
+++ b/static/safari/cmd/prism/go.mod
@@ -1,3 +1,3 @@
 module github.com/aerokube/images/prism
 
-go 1.19
+go 1.20
diff --git a/static/safari/cmd/prism/main.go b/static/safari/cmd/prism/main.go
index 2bafe4181..fd30d165a 100644
--- a/static/safari/cmd/prism/main.go
+++ b/static/safari/cmd/prism/main.go
@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"net/http"
 	"net/http/httputil"
@@ -97,7 +96,7 @@ func main() {
 					http.Error(w, err.Error(), http.StatusInternalServerError)
 					return
 				}
-				r.Body = ioutil.NopCloser(bytes.NewReader(body))
+				r.Body = io.NopCloser(bytes.NewReader(body))
 				r.ContentLength = int64(len(body))
 			}
 			(&httputil.ReverseProxy{
@@ -132,7 +131,7 @@ func main() {
 					resp.Header.Del("Server")
 					resp.Header.Del("Content-Length")
 					resp.ContentLength = int64(len(buf))
-					resp.Body = ioutil.NopCloser(bytes.NewReader(buf))
+					resp.Body = io.NopCloser(bytes.NewReader(buf))
 					return nil
 				},
 			}).ServeHTTP(w, r)