diff --git a/staging/src/k8s.io/code-generator/cmd/applyconfiguration-gen/generators/openapi.go b/staging/src/k8s.io/code-generator/cmd/applyconfiguration-gen/generators/openapi.go
index 8ad14fe3c1d..940926f3456 100644
--- a/staging/src/k8s.io/code-generator/cmd/applyconfiguration-gen/generators/openapi.go
+++ b/staging/src/k8s.io/code-generator/cmd/applyconfiguration-gen/generators/openapi.go
@@ -19,7 +19,7 @@ package generators
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"strings"
 
 	openapiv2 "github.com/google/gnostic/openapiv2"
@@ -42,7 +42,7 @@ func newTypeModels(openAPISchemaFilePath string, pkgTypes map[string]*types.Pack
 		return emptyModels, nil // No Extract<type>() functions will be generated.
 	}
 
-	rawOpenAPISchema, err := ioutil.ReadFile(openAPISchemaFilePath)
+	rawOpenAPISchema, err := os.ReadFile(openAPISchemaFilePath)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read openapi-schema file: %w", err)
 	}
diff --git a/staging/src/k8s.io/code-generator/cmd/go-to-protobuf/protobuf/parser.go b/staging/src/k8s.io/code-generator/cmd/go-to-protobuf/protobuf/parser.go
index c0238be8c28..1d27f958068 100644
--- a/staging/src/k8s.io/code-generator/cmd/go-to-protobuf/protobuf/parser.go
+++ b/staging/src/k8s.io/code-generator/cmd/go-to-protobuf/protobuf/parser.go
@@ -25,7 +25,6 @@ import (
 	"go/parser"
 	"go/printer"
 	"go/token"
-	"io/ioutil"
 	"os"
 	"reflect"
 	"strings"
@@ -35,7 +34,7 @@ import (
 
 func rewriteFile(name string, header []byte, rewriteFn func(*token.FileSet, *ast.File) error) error {
 	fset := token.NewFileSet()
-	src, err := ioutil.ReadFile(name)
+	src, err := os.ReadFile(name)
 	if err != nil {
 		return err
 	}