diff --git a/utils/strconv.go b/utils/strconv.go
index ccd714f..4a2f526 100644
--- a/utils/strconv.go
+++ b/utils/strconv.go
@@ -6,16 +6,17 @@ import (
 )
 
 func StringToBytes(s string) []byte {
-	return *(*[]byte)(unsafe.Pointer(
-		&struct {
-			string
-			Cap int
-		}{s, len(s)},
-	))
+	if len(s) == 0 {
+		return nil
+	}
+	return unsafe.Slice(unsafe.StringData(s), len(s))
 }
 
 func BytesToString(b []byte) string {
-	return *(*string)(unsafe.Pointer(&b))
+	if len(b) == 0 {
+		return ""
+	}
+	return unsafe.String(unsafe.SliceData(b), len(b))
 }
 
 func B64Decode(s string) ([]byte, error) {