diff --git a/internal/app/mail/tpl_files/mail_with_attachment.gohtml b/internal/app/mail/tpl_files/mail_with_attachment.gohtml
index fec3d2c..0bc5d70 100644
--- a/internal/app/mail/tpl_files/mail_with_attachment.gohtml
+++ b/internal/app/mail/tpl_files/mail_with_attachment.gohtml
@@ -143,7 +143,7 @@
                                                                     <td align="left">
                                                                         <table border="0" cellspacing="0" cellpadding="0">
                                                                             <tr>
-                                                                                <td class="blue-button text-button" style="background:#000000; color:#c1cddc; font-family:'Muli', Arial,sans-serif; font-size:14px; line-height:18px; padding:12px 30px; text-align:center; border-radius:0px 22px 22px 22px; font-weight:bold;"><a href="https://www.wireguard.com/install" target="_blank" class="link-white" style="color:#ffffff; text-decoration:none;"><span class="link-white" style="color:#ffffff; text-decoration:none;">Download WireGuard VPN Client</span></a></td>
+                                                                                <td class="blue-button text-button" style="background:#000000; color:#ffffff; font-family:'Muli', Arial,sans-serif; font-size:14px; line-height:18px; padding:12px 30px; text-align:center; border-radius:0px 22px 22px 22px; font-weight:bold;"><a href="https://www.wireguard.com/install" target="_blank" class="link-white" style="color:#ffffff; text-decoration:none;"><span class="link-white" style="color:#ffffff; text-decoration:none;">Download WireGuard VPN Client</span></a></td>
                                                                             </tr>
                                                                         </table>
                                                                     </td>
diff --git a/internal/app/mail/tpl_files/mail_with_link.gohtml b/internal/app/mail/tpl_files/mail_with_link.gohtml
index 62b3127..41097cc 100644
--- a/internal/app/mail/tpl_files/mail_with_link.gohtml
+++ b/internal/app/mail/tpl_files/mail_with_link.gohtml
@@ -143,7 +143,7 @@
                                                                     <td align="left">
                                                                         <table border="0" cellspacing="0" cellpadding="0">
                                                                             <tr>
-                                                                                <td class="blue-button text-button" style="background:#000000; color:#c1cddc; font-family:'Muli', Arial,sans-serif; font-size:14px; line-height:18px; padding:12px 30px; text-align:center; border-radius:0px 22px 22px 22px; font-weight:bold;"><a href="https://www.wireguard.com/install" target="_blank" class="link-white" style="color:#ffffff; text-decoration:none;"><span class="link-white" style="color:#ffffff; text-decoration:none;">Download WireGuard VPN Client</span></a></td>
+                                                                                <td class="blue-button text-button" style="background:#000000; color:#ffffff; font-family:'Muli', Arial,sans-serif; font-size:14px; line-height:18px; padding:12px 30px; text-align:center; border-radius:0px 22px 22px 22px; font-weight:bold;"><a href="https://www.wireguard.com/install" target="_blank" class="link-white" style="color:#ffffff; text-decoration:none;"><span class="link-white" style="color:#ffffff; text-decoration:none;">Download WireGuard VPN Client</span></a></td>
                                                                             </tr>
                                                                         </table>
                                                                     </td>