diff --git a/hack/cmd-docs/main.go b/hack/cmd-docs/main.go
index d1fe35c0..462121cf 100644
--- a/hack/cmd-docs/main.go
+++ b/hack/cmd-docs/main.go
@@ -2,7 +2,6 @@ package main
 
 import (
 	"io/fs"
-	"io/ioutil"
 	"log"
 	"os"
 	"path/filepath"
@@ -55,7 +54,7 @@ func replaceHome() error {
 
 		log.Printf("replaced home at: %s", fname)
 
-		err = ioutil.WriteFile(fname, []byte(newstr), 0422)
+		err = os.WriteFile(fname, []byte(newstr), 0422)
 		if err != nil {
 			return err
 		}
diff --git a/pkg/application/application.go b/pkg/application/application.go
index 698e00c8..1c52de33 100644
--- a/pkg/application/application.go
+++ b/pkg/application/application.go
@@ -3,7 +3,6 @@ package application
 import (
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"reflect"
@@ -512,7 +511,7 @@ func fixResourcesPaths(k *kusttypes.Kustomization, newKustDir string) error {
 }
 
 var generateManifests = func(k *kusttypes.Kustomization) ([]byte, error) {
-	td, err := ioutil.TempDir(".", "auto-pilot")
+	td, err := os.MkdirTemp(".", "auto-pilot")
 	if err != nil {
 		return nil, fmt.Errorf("failed creating temp dir: %w", err)
 	}
@@ -533,7 +532,7 @@ var generateManifests = func(k *kusttypes.Kustomization) ([]byte, error) {
 	}
 
 	kustomizationPath := filepath.Join(td, "kustomization.yaml")
-	if err = ioutil.WriteFile(kustomizationPath, kyaml, 0400); err != nil {
+	if err = os.WriteFile(kustomizationPath, kyaml, 0400); err != nil {
 		return nil, fmt.Errorf("failed writing file to \"%s\": %w", kustomizationPath, err)
 	}
 
diff --git a/pkg/application/application_test.go b/pkg/application/application_test.go
index 82bf6b29..674550b8 100644
--- a/pkg/application/application_test.go
+++ b/pkg/application/application_test.go
@@ -2,7 +2,7 @@ package application
 
 import (
 	"errors"
-	"io/ioutil"
+	"io"
 	"path/filepath"
 	"reflect"
 	"testing"
@@ -206,7 +206,7 @@ func Test_writeFile(t *testing.T) {
 
 				f, err := repofs.Open("/foo/bar")
 				assert.NoError(t, err)
-				d, err := ioutil.ReadAll(f)
+				d, err := io.ReadAll(f)
 				assert.NoError(t, err)
 
 				assert.Equal(t, d, []byte("data"))
@@ -226,7 +226,7 @@ func Test_writeFile(t *testing.T) {
 				assert.Equal(t, "/someroot", repofs.Root())
 				f, err := repofs.Open("/foo/bar")
 				assert.NoError(t, err)
-				d, err := ioutil.ReadAll(f)
+				d, err := io.ReadAll(f)
 				assert.NoError(t, err)
 
 				assert.Equal(t, d, []byte("data2"))
diff --git a/pkg/fs/fs.go b/pkg/fs/fs.go
index f243a95c..19a98feb 100644
--- a/pkg/fs/fs.go
+++ b/pkg/fs/fs.go
@@ -3,7 +3,7 @@ package fs
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 
 	"github.com/argoproj-labs/argocd-autopilot/pkg/util"
@@ -92,7 +92,7 @@ func (fs *fsimpl) ReadFile(filename string) ([]byte, error) {
 	}
 	defer f.Close()
 
-	return ioutil.ReadAll(f)
+	return io.ReadAll(f)
 }
 
 func (fs *fsimpl) ReadYamls(filename string, o ...interface{}) error {