diff --git a/main.go b/main.go
index 5472c45..8014dc7 100644
--- a/main.go
+++ b/main.go
@@ -33,7 +33,7 @@ func main() {
 	cacheDir = filepath.Join(gp[0], "pkg", "mod", "cache", "download")
 	if _, err := os.Stat(cacheDir); os.IsNotExist(err) {
 		fmt.Fprintf(os.Stdout, "goproxy: %s cache dir is not exist. %s\n", time.Now().Format("2006-01-02 15:04:05"), cacheDir)
-		os.MkdirAll(cacheDir, 0644)
+		os.MkdirAll(cacheDir, 0755)
 	}
 	http.Handle("/", mainHandler(http.FileServer(http.Dir(cacheDir))))
 	err := http.ListenAndServe(listen, nil)