diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index a52d129e..a94b1732 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -16,7 +16,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v1
         with:
-          go-version: 1.18.x
+          go-version: 1.20.x
       - name: Run goreleaser
         uses: goreleaser/goreleaser-action@v1
         with:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7ffbda56..e85f70aa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,7 +1,7 @@
 name: Continuous Integration
 
 env:
-  GO_VERSION: 1.18
+  GO_VERSION: 1.20
 
 on:
   push:
@@ -27,7 +27,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v1
         with:
-          go-version: 1.18.x
+          go-version: 1.20.x
       - name: Cache build
         uses: actions/cache@v1
         with:
@@ -49,7 +49,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v1
         with:
-          go-version: 1.18.x
+          go-version: 1.20.x
       - name: Cache build
         uses: actions/cache@v1
         with:
@@ -77,7 +77,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v1
         with:
-          go-version: 1.18.x
+          go-version: 1.20.x
       - name: Cache build
         uses: actions/cache@v1
         with:
@@ -104,7 +104,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v1
         with:
-          go-version: 1.18.x
+          go-version: 1.20.x
       - name: Cache build
         uses: actions/cache@v1
         with:
diff --git a/.golangci.yml b/.golangci.yml
index de90dc51..d9c67792 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -26,4 +26,5 @@ linters-settings:
     max-func-lines: 0
 
 run:
-  go: 1.18
+  go: '1.20'
+  timeout: 10m
diff --git a/Dockerfile b/Dockerfile
index a3506d7b..97195930 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 ARG BASE_IMAGE_BUILDER=golang
 ARG ALPINE_VERSION=3.15
-ARG GO_VERSION=1.18
+ARG GO_VERSION=1.20
 
 FROM ${BASE_IMAGE_BUILDER}:${GO_VERSION}-alpine${ALPINE_VERSION} AS builder
 ARG GOARCH=amd64
diff --git a/go.mod b/go.mod
index 530df30e..419f715c 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/jesseduffield/lazydocker
 
-go 1.18
+go 1.20
 
 require (
 	github.com/OpenPeeDeeP/xdg v0.2.1-0.20190312153938-4ba9e1eb294c
diff --git a/pkg/commands/container.go b/pkg/commands/container.go
index 56aaa1e7..b45feef7 100644
--- a/pkg/commands/container.go
+++ b/pkg/commands/container.go
@@ -100,7 +100,7 @@ func (c *Container) Attach() (*exec.Cmd, error) {
 
 	c.Log.Warn(fmt.Sprintf("attaching to container %s", c.Name))
 	// TODO: use SDK
-	cmd := c.OSCommand.PrepareSubProcess("docker", "attach", "--sig-proxy=false", c.ID)
+	cmd := c.OSCommand.NewCmd("docker", "attach", "--sig-proxy=false", c.ID)
 	return cmd, nil
 }
 
diff --git a/pkg/commands/dummies.go b/pkg/commands/dummies.go
index 416a57dd..552171ac 100644
--- a/pkg/commands/dummies.go
+++ b/pkg/commands/dummies.go
@@ -1,7 +1,7 @@
 package commands
 
 import (
-	"io/ioutil"
+	"io"
 
 	"github.com/jesseduffield/lazydocker/pkg/config"
 	"github.com/jesseduffield/lazydocker/pkg/i18n"
@@ -31,7 +31,7 @@ func NewDummyAppConfig() *config.AppConfig {
 // NewDummyLog creates a new dummy Log for testing
 func NewDummyLog() *logrus.Entry {
 	log := logrus.New()
-	log.Out = ioutil.Discard
+	log.Out = io.Discard
 	return log.WithField("test", "test")
 }
 
diff --git a/pkg/commands/os.go b/pkg/commands/os.go
index a94acc3e..b8dec4a0 100644
--- a/pkg/commands/os.go
+++ b/pkg/commands/os.go
@@ -3,7 +3,7 @@ package commands
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -87,7 +87,7 @@ func (c *OSCommand) RunExecutable(cmd *exec.Cmd) error {
 // ExecutableFromString takes a string like `docker ps -a` and returns an executable command for it
 func (c *OSCommand) ExecutableFromString(commandStr string) *exec.Cmd {
 	splitCmd := str.ToArgv(commandStr)
-	return c.command(splitCmd[0], splitCmd[1:]...)
+	return c.NewCmd(splitCmd[0], splitCmd[1:]...)
 }
 
 // Same as ExecutableFromString but cancellable via a context
@@ -96,6 +96,12 @@ func (c *OSCommand) ExecutableFromStringContext(ctx context.Context, commandStr
 	return exec.CommandContext(ctx, splitCmd[0], splitCmd[1:]...)
 }
 
+func (c *OSCommand) NewCmd(cmdName string, commandArgs ...string) *exec.Cmd {
+	cmd := c.command(cmdName, commandArgs...)
+	cmd.Env = os.Environ()
+	return cmd
+}
+
 func (c *OSCommand) NewCommandStringWithShell(commandStr string) string {
 	var quotedCommand string
 	// Windows does not seem to like quotes around the command
@@ -187,12 +193,7 @@ func (c *OSCommand) EditFile(filename string) (*exec.Cmd, error) {
 		return nil, errors.New("No editor defined in $VISUAL or $EDITOR")
 	}
 
-	return c.PrepareSubProcess(editor, filename), nil
-}
-
-// PrepareSubProcess iniPrepareSubProcessrocess then tells the Gui to switch to it
-func (c *OSCommand) PrepareSubProcess(cmdName string, commandArgs ...string) *exec.Cmd {
-	return c.command(cmdName, commandArgs...)
+	return c.NewCmd(editor, filename), nil
 }
 
 // Quote wraps a message in platform-specific quotation marks
@@ -239,7 +240,7 @@ func (c *OSCommand) AppendLineToFile(filename, line string) error {
 
 // CreateTempFile writes a string to a new temp file and returns the file's name
 func (c *OSCommand) CreateTempFile(filename, content string) (string, error) {
-	tmpfile, err := ioutil.TempFile("", filename)
+	tmpfile, err := os.CreateTemp("", filename)
 	if err != nil {
 		c.Log.Error(err)
 		return "", WrapError(err)
@@ -301,7 +302,7 @@ func (c *OSCommand) GetLazydockerPath() string {
 
 // RunCustomCommand returns the pointer to a custom command
 func (c *OSCommand) RunCustomCommand(command string) *exec.Cmd {
-	return c.PrepareSubProcess(c.Platform.shell, c.Platform.shellArg, command)
+	return c.NewCmd(c.Platform.shell, c.Platform.shellArg, command)
 }
 
 // PipeCommands runs a heap of commands and pipes their inputs/outputs together like A | B | C
@@ -341,7 +342,7 @@ func (c *OSCommand) PipeCommands(commandStrings ...string) error {
 				c.Log.Error(err)
 			}
 
-			if b, err := ioutil.ReadAll(stderr); err == nil {
+			if b, err := io.ReadAll(stderr); err == nil {
 				if len(b) > 0 {
 					finalErrors = append(finalErrors, string(b))
 				}
diff --git a/pkg/commands/os_test.go b/pkg/commands/os_test.go
index 978844d9..3e036db4 100644
--- a/pkg/commands/os_test.go
+++ b/pkg/commands/os_test.go
@@ -2,7 +2,6 @@ package commands
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"testing"
@@ -90,7 +89,7 @@ func TestOSCommandEditFile(t *testing.T) {
 
 				assert.EqualValues(t, "nano", name)
 
-				return nil
+				return exec.Command("exit", "0")
 			},
 			func(env string) string {
 				if env == "VISUAL" {
@@ -112,7 +111,7 @@ func TestOSCommandEditFile(t *testing.T) {
 
 				assert.EqualValues(t, "emacs", name)
 
-				return nil
+				return exec.Command("exit", "0")
 			},
 			func(env string) string {
 				if env == "EDITOR" {
@@ -134,7 +133,7 @@ func TestOSCommandEditFile(t *testing.T) {
 
 				assert.EqualValues(t, "vi", name)
 
-				return nil
+				return exec.Command("exit", "0")
 			},
 			func(env string) string {
 				return ""
@@ -290,7 +289,7 @@ func TestOSCommandCreateTempFile(t *testing.T) {
 			func(path string, err error) {
 				assert.NoError(t, err)
 
-				content, err := ioutil.ReadFile(path)
+				content, err := os.ReadFile(path)
 				assert.NoError(t, err)
 
 				assert.Equal(t, "content", string(content))
diff --git a/pkg/commands/ssh/ssh.go b/pkg/commands/ssh/ssh.go
index 9f572683..ecc84045 100644
--- a/pkg/commands/ssh/ssh.go
+++ b/pkg/commands/ssh/ssh.go
@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net"
 	"net/url"
 	"os"
@@ -37,7 +36,7 @@ func NewSSHHandler(oSCommand CmdKiller) *SSHHandler {
 			return (&net.Dialer{}).DialContext(ctx, network, addr)
 		},
 		startCmd: func(cmd *exec.Cmd) error { return cmd.Start() },
-		tempDir:  ioutil.TempDir,
+		tempDir:  os.MkdirTemp,
 		getenv:   os.Getenv,
 		setenv:   os.Setenv,
 	}
diff --git a/pkg/config/app_config.go b/pkg/config/app_config.go
index f3a47db2..d35a244d 100644
--- a/pkg/config/app_config.go
+++ b/pkg/config/app_config.go
@@ -13,7 +13,6 @@
 package config
 
 import (
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
@@ -569,7 +568,7 @@ func loadUserConfig(configDir string, base *UserConfig) (*UserConfig, error) {
 		}
 	}
 
-	content, err := ioutil.ReadFile(fileName)
+	content, err := os.ReadFile(fileName)
 	if err != nil {
 		return nil, err
 	}
diff --git a/pkg/gui/subprocess.go b/pkg/gui/subprocess.go
index 62003390..b41ac475 100644
--- a/pkg/gui/subprocess.go
+++ b/pkg/gui/subprocess.go
@@ -2,7 +2,7 @@ package gui
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"os/exec"
 	"os/signal"
@@ -65,8 +65,8 @@ func (gui *Gui) runCommand(cmd *exec.Cmd, msg string) {
 	}
 
 	cmd.Stdin = nil
-	cmd.Stdout = ioutil.Discard
-	cmd.Stderr = ioutil.Discard
+	cmd.Stdout = io.Discard
+	cmd.Stderr = io.Discard
 
 	gui.promptToReturn()
 }
diff --git a/pkg/log/log.go b/pkg/log/log.go
index e80cadc7..232a7bb8 100644
--- a/pkg/log/log.go
+++ b/pkg/log/log.go
@@ -2,7 +2,7 @@ package log
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"path/filepath"
 
@@ -54,7 +54,7 @@ func newDevelopmentLogger(config *config.AppConfig) *logrus.Logger {
 
 func newProductionLogger() *logrus.Logger {
 	log := logrus.New()
-	log.Out = ioutil.Discard
+	log.Out = io.Discard
 	log.SetLevel(logrus.ErrorLevel)
 	return log
 }