diff --git a/assets/mailer_templates/build_production/workspace_invitation.html b/assets/mailer_templates/build_production/workspace_invitation.html
index 63d4edfa..601d4a7e 100644
--- a/assets/mailer_templates/build_production/workspace_invitation.html
+++ b/assets/mailer_templates/build_production/workspace_invitation.html
@@ -100,7 +100,7 @@
                 <img src="https://raw.githubusercontent.com/AppFlowy-IO/AppFlowy-Cloud/main/assets/mailer_templates/build_production/images/appflowy-logo.png" width="150px" style="max-width: 100%; vertical-align: middle; line-height: 1;" alt="">
               </a>
             </p>
-            <p style="margin: 0; font-size: 14px; font-weight: 500">
+            <p style="margin: 0; font-size: 14px; font-weight: 500; color: #000">
               Bring projects, knowledge, and teams together with the power of AI.
             </p>
             <p style="cursor: default">
diff --git a/email_template/src/templates/workspace_invitation.html b/email_template/src/templates/workspace_invitation.html
index e3d2ad41..05719973 100644
--- a/email_template/src/templates/workspace_invitation.html
+++ b/email_template/src/templates/workspace_invitation.html
@@ -63,7 +63,7 @@ bodyClass: bg-purple-50
                             <img src="{{ cdnBaseUrl }}images/appflowy-logo.png" width="150px">
                         </a>
                     </p>
-                    <p class="m-0 text-sm font-medium">
+                    <p class="m-0 text-sm text-black font-medium">
                         Bring projects, knowledge, and teams together with the power of AI.
                     </p>