diff --git a/vendor.conf b/vendor.conf
index eac22aceca..76499ece27 100755
--- a/vendor.conf
+++ b/vendor.conf
@@ -47,7 +47,7 @@ github.com/inconshreveable/mousetrap                76626ae9c91c4f2a10f34cad8ce8
 github.com/jaguilar/vt100                           ad4c4a5743050fb7f88ce968dca9422f72a0e3f2 git://github.com/tonistiigi/vt100.git
 github.com/json-iterator/go                         0ff49de124c6f76f8494e194af75bde0f1a49a29 # 1.1.6
 github.com/konsorten/go-windows-terminal-sequences  f55edac94c9bbba5d6182a4be46d86a2c9b5b50e # v1.0.2
-github.com/mattn/go-shellwords                      a72fbe27a1b0ed0df2f02754945044ce1456608b # v1.0.5
+github.com/mattn/go-shellwords                      36a9b3c57cb5caa559ff63fb7e9b585f1c00df75 # v1.0.6
 github.com/matttproud/golang_protobuf_extensions    c12348ce28de40eed0136aa2b644d0ee0650e56c # v1.0.1
 github.com/Microsoft/go-winio                       6c72808b55902eae4c5943626030429ff20f3b63 # v0.4.14
 github.com/Microsoft/hcsshim                        672e52e9209d1e53718c1b6a7d68cc9272654ab5
diff --git a/vendor/github.com/mattn/go-shellwords/README.md b/vendor/github.com/mattn/go-shellwords/README.md
index b1d235c78d..9e1e650457 100644
--- a/vendor/github.com/mattn/go-shellwords/README.md
+++ b/vendor/github.com/mattn/go-shellwords/README.md
@@ -1,6 +1,6 @@
 # go-shellwords
 
-[![Coverage Status](https://coveralls.io/repos/mattn/go-shellwords/badge.png?branch=master)](https://coveralls.io/r/mattn/go-shellwords?branch=master)
+[![codecov](https://codecov.io/gh/mattn/go-shellwords/branch/master/graph/badge.svg)](https://codecov.io/gh/mattn/go-shellwords)
 [![Build Status](https://travis-ci.org/mattn/go-shellwords.svg?branch=master)](https://travis-ci.org/mattn/go-shellwords)
 
 Parse line as shell words.
diff --git a/vendor/github.com/mattn/go-shellwords/shellwords.go b/vendor/github.com/mattn/go-shellwords/shellwords.go
index 41429d8f26..2dca7f1361 100644
--- a/vendor/github.com/mattn/go-shellwords/shellwords.go
+++ b/vendor/github.com/mattn/go-shellwords/shellwords.go
@@ -40,6 +40,7 @@ type Parser struct {
 	ParseEnv      bool
 	ParseBacktick bool
 	Position      int
+	Dir           string
 
 	// If ParseEnv is true, use this for getenv.
 	// If nil, use os.Getenv.
@@ -51,6 +52,7 @@ func NewParser() *Parser {
 		ParseEnv:      ParseEnv,
 		ParseBacktick: ParseBacktick,
 		Position:      0,
+		Dir:           "",
 	}
 }
 
@@ -100,11 +102,11 @@ loop:
 			if !singleQuoted && !doubleQuoted && !dollarQuote {
 				if p.ParseBacktick {
 					if backQuote {
-						out, err := shellRun(backtick)
+						out, err := shellRun(backtick, p.Dir)
 						if err != nil {
 							return nil, err
 						}
-						buf = out
+						buf = buf[:len(buf)-len(backtick)] + out
 					}
 					backtick = ""
 					backQuote = !backQuote
@@ -117,15 +119,11 @@ loop:
 			if !singleQuoted && !doubleQuoted && !backQuote {
 				if p.ParseBacktick {
 					if dollarQuote {
-						out, err := shellRun(backtick)
+						out, err := shellRun(backtick, p.Dir)
 						if err != nil {
 							return nil, err
 						}
-						if r == ')' {
-							buf = buf[:len(buf)-len(backtick)-2] + out
-						} else {
-							buf = buf[:len(buf)-len(backtick)-1] + out
-						}
+						buf = buf[:len(buf)-len(backtick)-2] + out
 					}
 					backtick = ""
 					dollarQuote = !dollarQuote
@@ -155,7 +153,7 @@ loop:
 				continue
 			}
 		case ';', '&', '|', '<', '>':
-			if !(escaped || singleQuoted || doubleQuoted || backQuote) {
+			if !(escaped || singleQuoted || doubleQuoted || backQuote || dollarQuote) {
 				if r == '>' && len(buf) > 0 {
 					if c := buf[0]; '0' <= c && c <= '9' {
 						i -= 1
diff --git a/vendor/github.com/mattn/go-shellwords/util_go15.go b/vendor/github.com/mattn/go-shellwords/util_go15.go
index 180f00f0bd..ddcbf229e6 100644
--- a/vendor/github.com/mattn/go-shellwords/util_go15.go
+++ b/vendor/github.com/mattn/go-shellwords/util_go15.go
@@ -9,14 +9,19 @@ import (
 	"strings"
 )
 
-func shellRun(line string) (string, error) {
+func shellRun(line, dir string) (string, error) {
 	var b []byte
 	var err error
+	var cmd *exec.Cmd
 	if runtime.GOOS == "windows" {
-		b, err = exec.Command(os.Getenv("COMSPEC"), "/c", line).Output()
+		cmd = exec.Command(os.Getenv("COMSPEC"), "/c", line)
 	} else {
-		b, err = exec.Command(os.Getenv("SHELL"), "-c", line).Output()
+		cmd = exec.Command(os.Getenv("SHELL"), "-c", line)
 	}
+	if dir != "" {
+		cmd.Dir = dir
+	}
+	b, err = cmd.Output()
 	if err != nil {
 		return "", err
 	}
diff --git a/vendor/github.com/mattn/go-shellwords/util_posix.go b/vendor/github.com/mattn/go-shellwords/util_posix.go
index eaf1011d60..3aef2c4d79 100644
--- a/vendor/github.com/mattn/go-shellwords/util_posix.go
+++ b/vendor/github.com/mattn/go-shellwords/util_posix.go
@@ -9,9 +9,13 @@ import (
 	"strings"
 )
 
-func shellRun(line string) (string, error) {
+func shellRun(line, dir string) (string, error) {
 	shell := os.Getenv("SHELL")
-	b, err := exec.Command(shell, "-c", line).Output()
+	cmd := exec.Command(shell, "-c", line)
+	if dir != "" {
+		cmd.Dir = dir
+	}
+	b, err := cmd.Output()
 	if err != nil {
 		if eerr, ok := err.(*exec.ExitError); ok {
 			b = eerr.Stderr
diff --git a/vendor/github.com/mattn/go-shellwords/util_windows.go b/vendor/github.com/mattn/go-shellwords/util_windows.go
index e46f89a1fe..cda6850910 100644
--- a/vendor/github.com/mattn/go-shellwords/util_windows.go
+++ b/vendor/github.com/mattn/go-shellwords/util_windows.go
@@ -9,9 +9,13 @@ import (
 	"strings"
 )
 
-func shellRun(line string) (string, error) {
+func shellRun(line, dir string) (string, error) {
 	shell := os.Getenv("COMSPEC")
-	b, err := exec.Command(shell, "/c", line).Output()
+	cmd := exec.Command(shell, "/c", line)
+	if dir != "" {
+		cmd.Dir = dir
+	}
+	b, err := cmd.Output()
 	if err != nil {
 		if eerr, ok := err.(*exec.ExitError); ok {
 			b = eerr.Stderr