diff --git a/file.go b/file.go
index 925ad93..27bb2d2 100644
--- a/file.go
+++ b/file.go
@@ -21,6 +21,13 @@ func init() {
 			args := gojs.MakeArgs(&argsIn, vm).Check(1)
 			return vm.ToValue(u.FileExists(args.Path(0)))
 		},
+		"mkdir": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
+			args := gojs.MakeArgs(&argsIn, vm).Check(1)
+			if err := os.MkdirAll(args.Path(0), 0755); err != nil {
+				panic(vm.NewGoError(err))
+			}
+			return nil
+		},
 		"read": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
 			args := gojs.MakeArgs(&argsIn, vm).Check(1)
 			if r, err := u.ReadFile(args.Path(0)); err == nil {
diff --git a/file.ts b/file.ts
index 33acf4a..765ef3f 100644
--- a/file.ts
+++ b/file.ts
@@ -2,6 +2,7 @@
 
 export default {
     exists,
+    mkdir,
     read,
     readBytes,
     write,
@@ -15,6 +16,7 @@ export default {
 }
 
 function exists(filename: string): boolean { return false }
+function mkdir(filename: string): void { }
 function read(filename: string): string { return '' }
 function readBytes(filename: string): any { return null }
 function write(filename: string, data: any): void { }
diff --git a/go.mod b/go.mod
index 502aa0d..e990687 100644
--- a/go.mod
+++ b/go.mod
@@ -3,20 +3,20 @@ module apigo.cc/gojs/file
 go 1.18
 
 require (
-	apigo.cc/gojs v0.0.4
-	github.com/ssgo/u v1.7.9
+	apigo.cc/gojs v0.0.8
+	github.com/ssgo/u v1.7.13
 )
 
 require (
 	github.com/dlclark/regexp2 v1.11.4 // indirect
-	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/fsnotify/fsnotify v1.8.0 // indirect
 	github.com/go-sourcemap/sourcemap v2.1.4+incompatible // indirect
 	github.com/google/pprof v0.0.0-20230207041349-798e818bf904 // indirect
-	github.com/ssgo/config v1.7.7 // indirect
+	github.com/ssgo/config v1.7.9 // indirect
 	github.com/ssgo/log v1.7.7 // indirect
 	github.com/ssgo/standard v1.7.7 // indirect
 	github.com/ssgo/tool v0.4.27 // indirect
-	golang.org/x/sys v0.26.0 // indirect
-	golang.org/x/text v0.19.0 // indirect
+	golang.org/x/sys v0.28.0 // indirect
+	golang.org/x/text v0.21.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )