diff --git a/index.js b/index.js
index 4f4bb4e..462e697 100644
--- a/index.js
+++ b/index.js
@@ -32,16 +32,16 @@ app.get('/api/qrcode', async (req, res) => {
         }
     }
 
-    check('client_name', /^[a-zA-Z0-9ČŠŽĐ'](?:[A-Z0-9 ČŠŽĐ']{0,31}[A-Z0-9ČŠŽĐ'])?$/i)
-    check('client_address', /^[a-zA-Z0-9ČŠŽĐ](?:[A-Z0-9 ČŠŽĐ]{0,31}[A-Z0-9ČŠŽĐ])?$/i)
-    check('client_city', /^[a-zA-Z0-9ČŠŽĐ](?:[A-Z0-9 ČŠŽĐ]{0,31}[A-Z0-9ČŠŽĐ])?$/i)
+    check('client_name', /^[a-zA-Z0-9ČŠŽĆĐ'](?:[A-Z0-9 ČŠŽĆĐ']{0,31}[A-Z0-9ČŠŽĆĐ'])?$/i)
+    check('client_address', /^[a-zA-Z0-9ČŠŽĆĐ](?:[A-Z0-9 ČŠŽĆĐ]{0,31}[A-Z0-9ČŠŽĆĐ])?$/i)
+    check('client_city', /^[a-zA-Z0-9ČŠŽĆĐ](?:[A-Z0-9 ČŠŽĆĐ]{0,31}[A-Z0-9ČŠŽĆĐ])?$/i)
     check('amount', /^(?=.{11}$)[0]{1,11}[0-9]{0,11}$/)
     check('payment_purpose', /^.{1,42}$/i)
     check('iban', /^[A-Z]{2}[A-Z0-9]{17,19}$/)
     check('reference', /^[A-Z]{2}[0-9\-]{1,24}$/)
-    check('issuer_name', /^[a-zA-Z0-9ČŠŽĐ.'](?:[A-Z0-9 ČŠŽĐ.'\-]{0,31}[A-Z0-9ČŠŽĐ.'])?$/i)
-    check('issuer_address', /^[a-zA-Z0-9ČŠŽĐ](?:[A-Z0-9 ČŠŽĐ\-.]{0,31}[A-Z0-9ČŠŽĐ])?$/i)
-    check('issuer_city', /^[a-zA-Z0-9ČŠŽĐ](?:[A-Z0-9 ČŠŽĐ]{0,31}[A-Z0-9ČŠŽĐ])?$/i)
+    check('issuer_name', /^[a-zA-Z0-9ČŠŽĆĐ.'](?:[A-Z0-9 ČŠŽĆĐ.'\-]{0,31}[A-Z0-9ČŠŽĆĐ.'])?$/i)
+    check('issuer_address', /^[a-zA-Z0-9ČŠŽĆĐ](?:[A-Z0-9 ČŠŽĆĐ\-.]{0,31}[A-Z0-9ČŠŽĆĐ])?$/i)
+    check('issuer_city', /^[a-zA-Z0-9ČŠŽĆĐ](?:[A-Z0-9 ČŠŽĐ]{0,31}[A-Z0-9ČŠŽĆĐ])?$/i)
 
     // SET DEFAULT PURPOSE_CODE
     if (!req.query.purpose_code) req.query.purpose_code = "OTHR"