diff --git a/_static/files/certificate.cer b/_static/files/certificate.cer
old mode 100755
new mode 100644
index ffe6b00ba..471d7393d
Binary files a/_static/files/certificate.cer and b/_static/files/certificate.cer differ
diff --git a/_static/files/certificate.key b/_static/files/certificate.key
old mode 100755
new mode 100644
index ea87ed817..0155f0af4
Binary files a/_static/files/certificate.key and b/_static/files/certificate.key differ
diff --git a/accounting/localizations/mexico.rst b/accounting/localizations/mexico.rst
index cc600de0c..248628037 100644
--- a/accounting/localizations/mexico.rst
+++ b/accounting/localizations/mexico.rst
@@ -76,7 +76,7 @@ company’s contact.
 .. tip::
    If you want use the Mexican localization on test mode, you can put any known
    address inside Mexico with all fields for the company address and
-   set the vat to **TCM970625MB1**.
+   set the vat to **EKU9003173C9**.
 
 .. image:: media/mexico03.png
    :align: center