diff --git a/pass/Helpers/Utils.swift b/pass/Helpers/Utils.swift
index 5dcd647..daa4496 100644
--- a/pass/Helpers/Utils.swift
+++ b/pass/Helpers/Utils.swift
@@ -50,7 +50,7 @@ class Utils {
     
     static func randomString(length: Int) -> String {
         
-        let letters : NSString = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+        let letters : NSString = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*_+-="
         let len = UInt32(letters.length)
         
         var randomString = ""