diff --git a/api/api_logging.go b/api/api_logging.go
index 34eef2c..70e00aa 100644
--- a/api/api_logging.go
+++ b/api/api_logging.go
@@ -21,7 +21,6 @@ import (
 	"encoding/base64"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"net/http/httputil"
 	"strings"
@@ -143,7 +142,7 @@ func drainBody(b io.ReadCloser) (r1, r2 io.ReadCloser, err error) {
 	if err = b.Close(); err != nil {
 		return nil, b, err
 	}
-	return ioutil.NopCloser(&buf), ioutil.NopCloser(bytes.NewReader(buf.Bytes())), nil
+	return io.NopCloser(&buf), io.NopCloser(bytes.NewReader(buf.Bytes())), nil
 }
 
 // dumpRequest returns the given request in its HTTP/1.x wire
diff --git a/mock/mock.go b/mock/mock.go
index a59f99c..5737c37 100644
--- a/mock/mock.go
+++ b/mock/mock.go
@@ -19,7 +19,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"net/http"
 	"path/filepath"
 	"strconv"
@@ -3270,7 +3270,7 @@ func writeError(w http.ResponseWriter, message string, httpStatus int) {
 //
 // An optional replacement map. If supplied every instance of a key in the JSON file will be replaced with the corresponding value.
 func returnJSONFile(directory, filename string, w http.ResponseWriter, replacements map[string]string) (jsonBytes []byte) {
-	jsonBytes, err := ioutil.ReadFile(filepath.Join(directory, filename)) // #nosec G20
+	jsonBytes, err := os.ReadFile(filepath.Join(directory, filename)) // #nosec G20
 	if err != nil {
 		log.Printf("Couldn't read %s/%s", directory, filename)
 		if w != nil {