diff --git a/internal/open/open.go b/internal/open/open.go
index 85fef8e07..f3b921a93 100644
--- a/internal/open/open.go
+++ b/internal/open/open.go
@@ -21,8 +21,10 @@ func runOpen(cmd *base.Command, args []string) {
 		return
 	}
 	questionId, err := strconv.Atoi(args[0])
-	base.CheckErr(err)
-	browser.Open("https://github.com/openset/leetcode#" + args[0])
+	if err != nil {
+		cmd.Usage()
+		return
+	}
 	problems := leetcode.ProblemsAll()
 	for _, problem := range problems.StatStatusPairs {
 		if problem.Stat.FrontendQuestionId == questionId {
diff --git a/internal/version/version.go b/internal/version/version.go
index 15717783e..0bc6dbc15 100644
--- a/internal/version/version.go
+++ b/internal/version/version.go
@@ -7,7 +7,7 @@ import (
 	"github.com/openset/leetcode/internal/base"
 )
 
-const version = "1.4.5"
+const version = "1.4.6"
 
 var CmdVersion = &base.Command{
 	Run:       runVersion,