diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 3cb4ff5..c02873c 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go_version: [1.18, 1.19, '1.20']
+        go_version: [1.19, '1.20', 1.21]
 
     steps:
       - name: Check out code
diff --git a/README.md b/README.md
index 364ac26..8d85280 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 
 - [godoc](https://pkg.go.dev/github.com/gookit/filter)
 
-> TIP: To filter and validate Map, Struct data, use [gookit/validate](https://github.com/gookit/validate)
+> **NOTE**: To filter and validate Map, Struct data. Please use [gookit/validate](https://github.com/gookit/validate)
 
 ## Install
 
diff --git a/filter.go b/filter.go
index 5906a6a..071a41a 100644
--- a/filter.go
+++ b/filter.go
@@ -56,8 +56,8 @@ func Apply(name string, val any, args []string) (any, error) {
 	// up: support filter pointer string value
 	if poStr, ok := val.(*string); ok {
 		str = *poStr
-	} else if str, ok = val.(string); ok {
-		return nil, fmt.Errorf("filter: '%s' only use for string type value", name)
+	} else if str, ok = val.(string); !ok {
+		return nil, fmt.Errorf("filter: '%s' only use for string type, input %T", name, val)
 	}
 
 	// val is must be string.
diff --git a/go.mod b/go.mod
index 8fe8838..a28ecc9 100644
--- a/go.mod
+++ b/go.mod
@@ -1,12 +1,12 @@
 module github.com/gookit/filter
 
-go 1.18
+go 1.19
 
-require github.com/gookit/goutil v0.6.11
+require github.com/gookit/goutil v0.6.15
 
 require (
-	github.com/gookit/color v1.5.3 // indirect
+	github.com/gookit/color v1.5.4 // indirect
 	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
-	golang.org/x/sys v0.10.0 // indirect
-	golang.org/x/text v0.11.0 // indirect
+	golang.org/x/sys v0.15.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 098163f..19a02d1 100644
--- a/go.sum
+++ b/go.sum
@@ -1,17 +1,15 @@
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/gookit/color v1.5.3 h1:twfIhZs4QLCtimkP7MOxlF3A0U/5cDPseRT9M/+2SCE=
-github.com/gookit/color v1.5.3/go.mod h1:NUzwzeehUfl7GIb36pqId+UGmRfQcU/WiiyTTeNjHtE=
-github.com/gookit/goutil v0.6.11 h1:615nIGRpQHFmgJ1oaA48q/z7bTx6KzMvHmKTsp21T2E=
-github.com/gookit/goutil v0.6.11/go.mod h1:bU9ghaM9uW23x2+jB0WcywRsFGbIP0hvdIKYl2OMiog=
+github.com/gookit/color v1.5.4 h1:FZmqs7XOyGgCAxmWyPslpiok1k05wmY3SJTytgvYFs0=
+github.com/gookit/color v1.5.4/go.mod h1:pZJOeOS8DM43rXbp4AZo1n9zCU2qjpcRko0b6/QJi9w=
+github.com/gookit/goutil v0.6.15 h1:mMQ0ElojNZoyPD0eVROk5QXJPh2uKR4g06slgPDF5Jo=
+github.com/gookit/goutil v0.6.15/go.mod h1:qdKdYEHQdEtyH+4fNdQNZfJHhI0jUZzHxQVAV3DaMDY=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
+github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
 github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM=
 golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561 h1:MDc5xs78ZrZr3HMQugiXOAkSZtfTpbJLDr/lwfgO53E=
-golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
-golang.org/x/sys v0.10.0 h1:SqMFp9UcQJZa+pmYuAKjd9xq1f0j5rLcDIk0mj4qAsA=
-golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/term v0.10.0 h1:3R7pNqamzBraeqj/Tj8qt1aQ2HpmlC+Cx/qL/7hn4/c=
-golang.org/x/text v0.11.0 h1:LAntKIrcmeSKERyiOh0XMV39LXS8IE9UL2yP7+f5ij4=
-golang.org/x/text v0.11.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/sys v0.15.0 h1:h48lPFYpsTvQJZF4EKyI4aLHaev3CxivZmv7yZig9pc=
+golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=