diff --git a/README.ja.md b/README.ja.md
index d4662638..8aaf3245 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -668,6 +668,7 @@ configtest:
                         [-log-dir=/path/to/log]
                         [-ask-key-password]
                         [-ssh-external]
+                        [-timeout=300]
                         [-http-proxy=http://192.168.0.1:8080]
                         [-debug]
 
@@ -684,6 +685,8 @@ configtest:
         /path/to/log (default "/var/log/vuls")
   -ssh-external
         Use external ssh command. Default: Use the Go native implementation
+  -timeout int
+        Timeout(Sec) (default 300)
 ```
 
 configtestサブコマンドは以下をチェックする
diff --git a/README.md b/README.md
index 12863313..0d8b4dfa 100644
--- a/README.md
+++ b/README.md
@@ -676,6 +676,7 @@ configtest:
                         [-log-dir=/path/to/log]
                         [-ask-key-password]
                         [-ssh-external]
+                        [-timeout=300]
                         [-debug]
 
                         [SERVER]...
@@ -691,6 +692,9 @@ configtest:
         /path/to/log (default "/var/log/vuls")
   -ssh-external
         Use external ssh command. Default: Use the Go native implementation
+  -timeout int
+        Timeout(Sec) (default 300)
+
 ```
 
 The configtest subcommand checks the following
diff --git a/commands/configtest.go b/commands/configtest.go
index 8f0a3bed..07a6308a 100644
--- a/commands/configtest.go
+++ b/commands/configtest.go
@@ -37,6 +37,7 @@ type ConfigtestCmd struct {
 	askKeyPassword bool
 	sshExternal    bool
 	httpProxy      string
+	timeoutSec     int
 
 	debug bool
 }
@@ -54,6 +55,7 @@ func (*ConfigtestCmd) Usage() string {
 			[-config=/path/to/config.toml]
 			[-log-dir=/path/to/log]
 			[-ask-key-password]
+			[-timeout=300]
 			[-ssh-external]
 			[-http-proxy=http://192.168.0.1:8080]
 			[-debug]
@@ -73,6 +75,8 @@ func (p *ConfigtestCmd) SetFlags(f *flag.FlagSet) {
 
 	f.BoolVar(&p.debug, "debug", false, "debug mode")
 
+	f.IntVar(&p.timeoutSec, "timeout", 5*60, "Timeout(Sec)")
+
 	f.BoolVar(
 		&p.askKeyPassword,
 		"ask-key-password",
@@ -157,10 +161,10 @@ func (p *ConfigtestCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interfa
 	}
 
 	util.Log.Info("Checking dependendies...")
-	scan.CheckDependencies()
+	scan.CheckDependencies(p.timeoutSec)
 
 	util.Log.Info("Checking sudo settings...")
-	scan.CheckIfSudoNoPasswd()
+	scan.CheckIfSudoNoPasswd(p.timeoutSec)
 
 	scan.PrintSSHableServerNames()
 	return subcommands.ExitSuccess
diff --git a/scan/serverapi.go b/scan/serverapi.go
index 487da400..3636be04 100644
--- a/scan/serverapi.go
+++ b/scan/serverapi.go
@@ -342,8 +342,7 @@ func detectContainerOSesOnServer(containerHost osTypeInterface) (oses []osTypeIn
 }
 
 // CheckDependencies checks dependencies are installed on target servers.
-func CheckDependencies() {
-	timeoutSec := 5 * 60
+func CheckDependencies(timeoutSec int) {
 	parallelExec(func(o osTypeInterface) error {
 		return o.checkDependencies()
 	}, timeoutSec)
@@ -351,8 +350,7 @@ func CheckDependencies() {
 }
 
 // CheckIfSudoNoPasswd checks whether vuls can sudo with nopassword via SSH
-func CheckIfSudoNoPasswd() {
-	timeoutSec := 5 * 60
+func CheckIfSudoNoPasswd(timeoutSec int) {
 	parallelExec(func(o osTypeInterface) error {
 		return o.checkIfSudoNoPasswd()
 	}, timeoutSec)