5 files changed, 6 insertions, 10 deletions
diff --git a/plumbing/transport/ssh/auth_method.go b/plumbing/transport/ssh/auth_method.go
index e89ce4b..ac4e358 100644
--- a/plumbing/transport/ssh/auth_method.go
+++ b/plumbing/transport/ssh/auth_method.go
@@ -3,7 +3,6 @@ package ssh
 import (
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"os/user"
 	"path/filepath"
@@ -134,7 +133,7 @@ func NewPublicKeys(user string, pemBytes []byte, password string) (*PublicKeys,
 // encoded private key. An encryption password should be given if the pemBytes
 // contains a password encrypted PEM block otherwise password should be empty.
 func NewPublicKeysFromFile(user, pemFile, password string) (*PublicKeys, error) {
-	bytes, err := ioutil.ReadFile(pemFile)
+	bytes, err := os.ReadFile(pemFile)
 	if err != nil {
 		return nil, err
 	}
diff --git a/plumbing/transport/ssh/common.go b/plumbing/transport/ssh/common.go
index 6617d9b..1531603 100644
--- a/plumbing/transport/ssh/common.go
+++ b/plumbing/transport/ssh/common.go
@@ -212,7 +212,7 @@ func (c *command) getHostWithPort() string {
 		port = DefaultPort
 	}
 
-	return fmt.Sprintf("%s:%d", host, port)
+	return net.JoinHostPort(host, strconv.Itoa(port))
 }
 
 func (c *command) doGetHostWithPortFromSSHConfig() (addr string, found bool) {
@@ -240,7 +240,7 @@ func (c *command) doGetHostWithPortFromSSHConfig() (addr string, found bool) {
 		}
 	}
 
-	addr = fmt.Sprintf("%s:%d", host, port)
+	addr = net.JoinHostPort(host, strconv.Itoa(port))
 	return
 }
 
diff --git a/plumbing/transport/ssh/internal/test/proxy_test.go b/plumbing/transport/ssh/internal/test/proxy_test.go
index 8baac2b..8e775f8 100644
--- a/plumbing/transport/ssh/internal/test/proxy_test.go
+++ b/plumbing/transport/ssh/internal/test/proxy_test.go
@@ -3,7 +3,6 @@ package test
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"net"
 	"os"
@@ -59,7 +58,7 @@ func (s *ProxyEnvSuite) TestCommand(c *C) {
 	}()
 
 	s.port = sshListener.Addr().(*net.TCPAddr).Port
-	s.base, err = ioutil.TempDir(os.TempDir(), fmt.Sprintf("go-git-ssh-%d", s.port))
+	s.base, err = os.MkdirTemp(os.TempDir(), fmt.Sprintf("go-git-ssh-%d", s.port))
 	c.Assert(err, IsNil)
 
 	ggssh.DefaultAuthBuilder = func(user string) (ggssh.AuthMethod, error) {
diff --git a/plumbing/transport/ssh/proxy_test.go b/plumbing/transport/ssh/proxy_test.go
index 2fab851..2ba98e8 100644
--- a/plumbing/transport/ssh/proxy_test.go
+++ b/plumbing/transport/ssh/proxy_test.go
@@ -3,7 +3,6 @@ package ssh
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"net"
 	"os"
@@ -54,7 +53,7 @@ func (s *ProxySuite) TestCommand(c *C) {
 	}()
 
 	s.u.port = sshListener.Addr().(*net.TCPAddr).Port
-	s.u.base, err = ioutil.TempDir(os.TempDir(), fmt.Sprintf("go-git-ssh-%d", s.u.port))
+	s.u.base, err = os.MkdirTemp(os.TempDir(), fmt.Sprintf("go-git-ssh-%d", s.u.port))
 	c.Assert(err, IsNil)
 
 	DefaultAuthBuilder = func(user string) (AuthMethod, error) {
diff --git a/plumbing/transport/ssh/upload_pack_test.go b/plumbing/transport/ssh/upload_pack_test.go
index fafff48..67af566 100644
--- a/plumbing/transport/ssh/upload_pack_test.go
+++ b/plumbing/transport/ssh/upload_pack_test.go
@@ -3,7 +3,6 @@ package ssh
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"net"
 	"os"
@@ -43,7 +42,7 @@ func (s *UploadPackSuite) SetUpSuite(c *C) {
 	c.Assert(err, IsNil)
 
 	s.port = l.Addr().(*net.TCPAddr).Port
-	s.base, err = ioutil.TempDir(os.TempDir(), fmt.Sprintf("go-git-ssh-%d", s.port))
+	s.base, err = os.MkdirTemp(os.TempDir(), fmt.Sprintf("go-git-ssh-%d", s.port))
 	c.Assert(err, IsNil)
 
 	DefaultAuthBuilder = func(user string) (AuthMethod, error) {