diff --git a/cmd/create-account/main.go b/cmd/create-account/main.go
index 742093e10..5cdf425e9 100644
--- a/cmd/create-account/main.go
+++ b/cmd/create-account/main.go
@@ -94,19 +94,19 @@ func main() {
 		if err2 != nil {
 			logrus.Fatalln(err2)
 		}
-		err2 = os.WriteFile("private.key", priv, 0644)
+		err2 = ioutil.WriteFile("private.key", priv, 0644)
 		if err2 != nil {
 			logrus.Fatalln(err2)
 		}
-		err2 = os.WriteFile("private.key.seed", priv.Seed(), 0644)
+		err2 = ioutil.WriteFile("private.key.seed", priv.Seed(), 0644)
 		if err2 != nil {
 			logrus.Fatalln(err2)
 		}
-		err2 = os.WriteFile("./public.key", pub, 0644)
+		err2 = ioutil.WriteFile("./public.key", pub, 0644)
 		if err2 != nil {
 			logrus.Fatalln(err2)
 		}
-		err2 = os.WriteFile("./public.key.b64", []byte(pub64), 0644)
+		err2 = ioutil.WriteFile("./public.key.b64", []byte(pub64), 0644)
 		if err2 != nil {
 			logrus.Fatalln(err2)
 		}
diff --git a/cmd/sign-challenge/main.go b/cmd/sign-challenge/main.go
index 16505fcc0..36ab990f6 100644
--- a/cmd/sign-challenge/main.go
+++ b/cmd/sign-challenge/main.go
@@ -19,6 +19,7 @@ import (
 	"encoding/base64"
 	"flag"
 	"fmt"
+	"io/ioutil"
 	"os"
 
 	"github.com/sirupsen/logrus"
@@ -51,7 +52,7 @@ func main() {
 	}
 
 	if *privateKeyFile != "" && *input != "" {
-		seedBytes, err := os.ReadFile(*privateKeyFile)
+		seedBytes, err := ioutil.ReadFile(*privateKeyFile)
 		if err != nil {
 			logrus.Fatalln(err)
 		}
diff --git a/go.mod b/go.mod
index eb421ce1e..e6202f665 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/Arceliar/phony v0.0.0-20210209235338-dde1a8dca979
 	github.com/DATA-DOG/go-sqlmock v1.5.0
 	github.com/HdrHistogram/hdrhistogram-go v1.0.1 // indirect
-	github.com/MFAshby/stdemuxerhook v1.0.0 // indirect
+	github.com/MFAshby/stdemuxerhook v1.0.0
 	github.com/Masterminds/semver/v3 v3.1.1
 	github.com/S7evinK/saramajetstream v0.0.0-20210709110708-de6efc8c4a32
 	github.com/Shopify/sarama v1.29.0