diff --git a/Changelog.md b/Changelog.md
index 7482ef3..a49f3b6 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -3,9 +3,11 @@ All notable changes to this project will be documented in this file. The format
 
 # [0.9.3] - 2022-04-16
 ## Changed
-- Parallelized update process
-- Simplified messages during the update process
-- Improved error messages
+- Parallelized update subcommand process
+- Parallelized check subcommand process
+- Simplified messages during the update/check process
+- Display the latest version after an update in an easily recognizable color
+- Improved error messages.
 # [0.9.1] - 2022-03-19
 ## Changed 
 - Changed the message at the time of update was incorrect, so the message was corrected.
diff --git a/cmd/check.go b/cmd/check.go
index a2648ef..e4bcdc6 100644
--- a/cmd/check.go
+++ b/cmd/check.go
@@ -50,28 +50,44 @@ func doCheck(pkgs []goutil.Package) int {
 	needUpdatePkgs := []goutil.Package{}
 
 	print.Info("check binary under $GOPATH/bin or $GOBIN")
-	for i, v := range pkgs {
-		if v.ModulePath == "" {
-			print.Err(fmt.Errorf(countFmt+" check failure: %s",
-				i+1, len(pkgs), v.Name))
-			result = 1
-			continue
+	ch := make(chan updateResult)
+	checker := func(p goutil.Package, result chan updateResult) {
+		var err error
+		if p.ModulePath == "" {
+			err = fmt.Errorf(" %s is not installed by 'go install' (or permission incorrect)", p.Name)
+		} else {
+			var latestVer string
+			latestVer, err = goutil.GetLatestVer(p.ModulePath)
+			if err != nil {
+				err = fmt.Errorf(" %s %w", p.Name, err)
+			}
+			p.Version.Latest = latestVer
+			if !goutil.IsAlreadyUpToDate(*p.Version) {
+				needUpdatePkgs = append(needUpdatePkgs, p)
+			}
 		}
 
-		latestVer, err := goutil.GetLatestVer(v.ModulePath)
-		if err != nil {
-			print.Err(fmt.Errorf(countFmt+" check failure: %w",
-				i+1, len(pkgs), err))
-			result = 1
-			continue
+		r := updateResult{
+			pkg: p,
+			err: err,
 		}
-		v.Version.Latest = latestVer
+		result <- r
+	}
 
-		print.Info(fmt.Sprintf(countFmt+" check success: %s (%s)",
-			i+1, len(pkgs), v.ModulePath, v.VersionCheckResultStr()))
+	// check all package
+	for _, v := range pkgs {
+		go checker(v, ch)
+	}
 
-		if !goutil.IsAlreadyUpToDate(*v.Version) {
-			needUpdatePkgs = append(needUpdatePkgs, v)
+	// print result
+	for i := 0; i < len(pkgs); i++ {
+		v := <-ch
+		if v.err == nil {
+			print.Info(fmt.Sprintf(countFmt+" %s (%s)",
+				i+1, len(pkgs), v.pkg.ModulePath, v.pkg.VersionCheckResultStr()))
+		} else {
+			result = 1
+			print.Err(fmt.Errorf(countFmt+"%s", i+1, len(pkgs), v.err.Error()))
 		}
 	}
 
diff --git a/doc/img/sample.png b/doc/img/sample.png
index b970b85..a42d5d0 100644
Binary files a/doc/img/sample.png and b/doc/img/sample.png differ
diff --git a/internal/goutil/goutil.go b/internal/goutil/goutil.go
index 06bff1b..b0cddf3 100644
--- a/internal/goutil/goutil.go
+++ b/internal/goutil/goutil.go
@@ -67,7 +67,7 @@ func (p *Package) CurrentToLatestStr() string {
 	if IsAlreadyUpToDate(*p.Version) {
 		return "Already up-to-date: " + color.GreenString(p.Version.Latest)
 	}
-	return color.GreenString(p.Version.Current) + " to " + color.GreenString(p.Version.Latest)
+	return color.GreenString(p.Version.Current) + " to " + color.YellowString(p.Version.Latest)
 }
 
 // VersionCheckResultStr returns string about command version check.
@@ -75,7 +75,7 @@ func (p *Package) VersionCheckResultStr() string {
 	if IsAlreadyUpToDate(*p.Version) {
 		return "Already up-to-date: " + color.GreenString(p.Version.Latest)
 	}
-	return "current: " + color.GreenString(p.Version.Current) + ", latest: " + color.GreenString(p.Version.Latest)
+	return "current: " + color.GreenString(p.Version.Current) + ", latest: " + color.YellowString(p.Version.Latest)
 }
 
 // IsAlreadyUpToDate return whether binary is already up to date or not.