diff --git a/go.mod b/go.mod
index ed8db4b..ee0dcbc 100644
--- a/go.mod
+++ b/go.mod
@@ -5,5 +5,5 @@ go 1.13
 require (
 	github.com/harakeishi/curver v0.1.2
 	github.com/likexian/whois v1.15.0
-	github.com/spf13/cobra v1.7.0
+	github.com/spf13/cobra v1.8.0
 )
diff --git a/go.sum b/go.sum
index 53add84..b34377c 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,4 @@
-github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/harakeishi/curver v0.1.2 h1:jyPmANcNfpZIau+MJZ+cXAm8E5Hutl5EvItugaBuQmA=
 github.com/harakeishi/curver v0.1.2/go.mod h1:G8ZUue/D5LVD1MFMv8bcsrn1SdwL/LbnqC+BFoFuVJw=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
@@ -9,8 +9,8 @@ github.com/likexian/whois v1.15.0 h1:AYYJ5bNUo8Qy2T1Z5GgMp1oIcIlCcTDfg1buYz6TdAE
 github.com/likexian/whois v1.15.0/go.mod h1:456fUTkh+O8F8v09bGdVl7XxBjRaQ4LvYHyVWX5Bxyg=
 github.com/likexian/whois-parser v1.24.8/go.mod h1:b6STMHHDaSKbd4PzGrP50wWE5NzeBUETa/hT9gI0G9I=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
-github.com/spf13/cobra v1.7.0 h1:hyqWnYt1ZQShIddO5kBpj3vu05/++x6tJ6dg8EC572I=
-github.com/spf13/cobra v1.7.0/go.mod h1:uLxZILRyS/50WlhOIKD7W6V5bgeIt+4sICxh6uRMrb0=
+github.com/spf13/cobra v1.8.0 h1:7aJaZx1B85qltLMc546zn58BxxfZdR/W22ej9CFoEf0=
+github.com/spf13/cobra v1.8.0/go.mod h1:WXLWApfZ71AjXPya3WOlMsY9yMs7YeiHhFVlvLyhcho=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=