diff --git a/addons/project/data/project_mail_template_data.xml b/addons/project/data/project_mail_template_data.xml
index 3014416929f..b274e5935c9 100644
--- a/addons/project/data/project_mail_template_data.xml
+++ b/addons/project/data/project_mail_template_data.xml
@@ -34,7 +34,7 @@
     % set partner = object.rating_get_partner_id()
     <table border="0" cellpadding="0" cellspacing="0" width="590" style="width:100%; margin:0px auto;">
     <tbody>
-        <tr><td valign="top" style="font-size: 14px;">
+        <tr><td valign="top" style="font-size: 13px;">
             Hello ${partner.name},<br/>
             Please take a moment to rate our services related to the task "<strong>${object.name}</strong>"
             % if object.rating_get_rated_partner_id().name:
@@ -45,11 +45,11 @@
         </td></tr>
         <tr><td style="text-align: center;">
             <table border="0" cellpadding="0" cellspacing="0" width="590" summary="o_mail_notification" style="width:100%; margin: 32px 0px 32px 0px;">
-                <tr><td style="font-size: 14px;">
+                <tr><td style="font-size: 13px;">
                     <strong>Tell us how you feel about our service</strong><br/>
                     <span style="text-color: #888888">(click on one of these smileys)</span>
                 </td></tr>
-                <tr><td style="font-size: 14px;">
+                <tr><td style="font-size: 13px;">
                     <table style="width:100%;text-align:center;">
                         <tr>
                             <td>
@@ -72,7 +72,7 @@
                 </td></tr>
             </table>
         </td></tr>
-        <tr><td valign="top" style="font-size: 14px;">
+        <tr><td valign="top" style="font-size: 13px;">
             We appreciate your feedback. It helps us to improve continuously.
             % if object.project_id.rating_status == 'stage':
                 <br/><span style="margin: 0px 0px 0px 0px; font-size: 12px; opacity: 0.5; color: #454748;">This customer survey has been sent because your task has been moved to the stage <b>${object.stage_id.name}</b></span>