diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11faf23..89d1220 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,14 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 
 ## [Unreleased]
 
-## [0.4.2] - 2023-04-05
+## [0.4.3] - 2024-05-27
+### Changed
+* Update dependencies
+
+### Fixed
+* Wait non-nil process when pty open failed
+
+## [0.4.2] - 2024-04-05
 ### Changed
 * Update dependencies
 
@@ -45,6 +52,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 * Initial release
 
 [Unreleased]: https://github.com/nwtgck/handy-sshd/compare/v0.4.2...HEAD
+[0.4.3]: https://github.com/nwtgck/handy-sshd/compare/v0.4.2...v0.4.3
 [0.4.2]: https://github.com/nwtgck/handy-sshd/compare/v0.4.1...v0.4.2
 [0.4.1]: https://github.com/nwtgck/handy-sshd/compare/v0.4.0...v0.4.1
 [0.4.0]: https://github.com/nwtgck/handy-sshd/compare/v0.3.0...v0.4.0
diff --git a/README.md b/README.md
index 13c5d61..83fc7d2 100644
--- a/README.md
+++ b/README.md
@@ -6,8 +6,8 @@ Portable SSH Server
 ## Install on Ubuntu/Debian
 
 ```bash
-wget https://github.com/nwtgck/handy-sshd/releases/download/v0.4.0/handy-sshd-0.4.0-linux-amd64.deb
-sudo dpkg -i handy-sshd-0.4.0-linux-amd64.deb 
+wget https://github.com/nwtgck/handy-sshd/releases/download/v0.4.2/handy-sshd-0.4.2-linux-amd64.deb
+sudo dpkg -i handy-sshd-0.4.2-linux-amd64.deb 
 ```
 
 ## Install on Mac
diff --git a/go.mod b/go.mod
index 95f8c48..fde30d2 100644
--- a/go.mod
+++ b/go.mod
@@ -10,8 +10,8 @@ require (
 	github.com/pkg/sftp v1.13.6
 	github.com/spf13/cobra v1.8.0
 	github.com/stretchr/testify v1.9.0
-	golang.org/x/crypto v0.22.0
-	golang.org/x/exp v0.0.0-20240404231335-c0f41cb1a7a0
+	golang.org/x/crypto v0.23.0
+	golang.org/x/exp v0.0.0-20240525044651-4c93da0ed11d
 )
 
 require (
@@ -22,7 +22,7 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rogpeppe/go-internal v1.12.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	golang.org/x/sys v0.19.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index 756cbb8..e5f58dd 100644
--- a/go.sum
+++ b/go.sum
@@ -45,10 +45,10 @@ github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5t
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.1.0/go.mod h1:RecgLatLF4+eUMCP1PoPZQb+cVrJcOPbHkTkbkB9sbw=
-golang.org/x/crypto v0.22.0 h1:g1v0xeRhjcugydODzvb3mEM9SQ0HGp9s/nh3COQ/C30=
-golang.org/x/crypto v0.22.0/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M=
-golang.org/x/exp v0.0.0-20240404231335-c0f41cb1a7a0 h1:985EYyeCOxTpcgOTJpflJUwOeEz0CQOdPt73OzpE9F8=
-golang.org/x/exp v0.0.0-20240404231335-c0f41cb1a7a0/go.mod h1:/lliqkxwWAhPjf5oSOIJup2XcqJaw8RGS6k3TGEc7GI=
+golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
+golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
+golang.org/x/exp v0.0.0-20240525044651-4c93da0ed11d h1:N0hmiNbwsSNwHBAvR3QB5w25pUwH4tK0Y/RltD1j1h4=
+golang.org/x/exp v0.0.0-20240525044651-4c93da0ed11d/go.mod h1:XtvwrStGgqGPLc4cjQfWqZHG1YFdYs6swckp8vpsjnc=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
@@ -62,12 +62,12 @@ golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
-golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
+golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.1.0/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.19.0 h1:+ThwsDv+tYfnJFhF4L8jITxu1tdTWRTZpdsWgEgjL6Q=
+golang.org/x/term v0.20.0 h1:VnkxpohqXaOBYJtBmEppKUG6mXpi+4O6purfc2+sMhw=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
diff --git a/pty_related_unix.go b/pty_related_unix.go
index 3f9f6ca..8c8f151 100644
--- a/pty_related_unix.go
+++ b/pty_related_unix.go
@@ -31,9 +31,11 @@ func (s *Server) createPty(shell string, connection ssh.Channel) (*os.File, erro
 			Status: 0,
 		}))
 		connection.Close()
-		_, err := sh.Process.Wait()
-		if err != nil {
-			s.Logger.Info("failed to exit shell", err)
+		if sh.Process != nil {
+			_, err := sh.Process.Wait()
+			if err != nil {
+				s.Logger.Info("failed to exit shell", err)
+			}
 		}
 		s.Logger.Info("session closed")
 	}
diff --git a/version/version.go b/version/version.go
index 4d1697f..33203b5 100644
--- a/version/version.go
+++ b/version/version.go
@@ -1,3 +1,3 @@
 package version
 
-const Version = "0.4.2"
+const Version = "0.4.3"