diff --git a/pkg/component/pluginmanager/manager.go b/pkg/component/pluginmanager/manager.go
index a4449f6..571bf35 100644
--- a/pkg/component/pluginmanager/manager.go
+++ b/pkg/component/pluginmanager/manager.go
@@ -204,7 +204,7 @@ func (b *BasicPluginManager) IsProtocInstalled(ctx context.Context, version stri
 	return IsProtocInstalled(ctx, b.storageDir, version)
 }
 
-// GetProtocLatestVersion is used to geet the latest version of protoc
+// GetProtocLatestVersion is used to get the latest version of protoc
 func (b *BasicPluginManager) GetProtocLatestVersion(ctx context.Context) (string, error) {
 	ctx, cancel := consts.GetContextWithPerCommandTimeout(ctx)
 	defer cancel()
@@ -216,7 +216,13 @@ func (b *BasicPluginManager) GetProtocLatestVersion(ctx context.Context) (string
 	if len(versions) == 0 {
 		return "", errors.New("no version list")
 	}
-	return versions[len(versions)-1], nil
+	regularVersions := make([]string, 0, len(versions))
+	for _, version := range versions {
+		if util.IsRegularVersion(version) {
+			regularVersions = append(regularVersions, version)
+		}
+	}
+	return regularVersions[len(regularVersions)-1], nil
 }
 
 // ListProtocVersions is used to list protoc version
diff --git a/pkg/util/util.go b/pkg/util/util.go
index 16fdbc6..238a649 100644
--- a/pkg/util/util.go
+++ b/pkg/util/util.go
@@ -115,7 +115,17 @@ func GetExitCode(err error) int {
 	return 1
 }
 
-var regexpEnvironmentVar = regexp.MustCompile(`\$[A-Za-z_]+`)
+var (
+	regexpEnvironmentVar = regexp.MustCompile(`\$[A-Za-z_]+`)
+	regexpRegularVersion = regexp.MustCompile(`^v[0-9]+\.[0-9]+\.[0-9]+$`)
+)
+
+
+// IsRegularVersion is used to determine whether the version number is a regular version number
+// Regular: va.b.c, and a, b, c are all numbers
+func IsRegularVersion(s string) bool {
+	return regexpRegularVersion.MatchString(s)
+}
 
 // RenderWithEnv is used to render string with env
 func RenderWithEnv(s string, ext map[string]string) string {
diff --git a/pkg/util/util_test.go b/pkg/util/util_test.go
index cdc341f..ca92222 100644
--- a/pkg/util/util_test.go
+++ b/pkg/util/util_test.go
@@ -120,3 +120,50 @@ func TestSortSemanticVersion(t *testing.T) {
 		})
 	}
 }
+
+func TestIsRegularVersion(t *testing.T) {
+	type args struct {
+		s string
+	}
+	tests := []struct {
+		name string
+		args args
+		want bool
+	}{
+		{
+			args: args{"v0.0.0"},
+			want: true,
+		},
+		{
+			args: args{"v11.0.0"},
+			want: true,
+		},
+		{
+			args: args{"v0.11.0"},
+			want: true,
+		},
+		{
+			args: args{"v0.0.11"},
+			want: true,
+		},
+		{
+			args: args{"0.0.11"},
+			want: false,
+		},
+		{
+			args: args{"0.0.a"},
+			want: false,
+		},
+		{
+			args: args{"v0.0.1-rc0"},
+			want: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := IsRegularVersion(tt.args.s); got != tt.want {
+				t.Errorf("IsRegularVersion() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
\ No newline at end of file