diff --git a/addons/mail/static/src/core/common/message_reaction_button.xml b/addons/mail/static/src/core/common/message_reaction_button.xml
index cc051d7cb9b..50c03313cbc 100644
--- a/addons/mail/static/src/core/common/message_reaction_button.xml
+++ b/addons/mail/static/src/core/common/message_reaction_button.xml
@@ -2,7 +2,7 @@
 <templates xml:space="preserve">
 
     <t t-name="mail.MessageReactionButton">
-        <button class="btn px-1 py-0 rounded-0" tabindex="1" title="Add a Reaction" aria-label="Add a Reaction" t-ref="emoji-picker"><i class="fa fa-lg fa-smile-o"/></button>
+        <button class="btn px-1 py-0 rounded-0" tabindex="1" title="Add a Reaction" aria-label="Add a Reaction" t-ref="emoji-picker"><i class="oi fa-lg oi-smile-add"/></button>
     </t>
 
 </templates>
diff --git a/addons/mail/static/src/views/web/fields/emojis_field_common/emojis_field_common.xml b/addons/mail/static/src/views/web/fields/emojis_field_common/emojis_field_common.xml
index c7e982948a5..3ccf7b1d66a 100644
--- a/addons/mail/static/src/views/web/fields/emojis_field_common/emojis_field_common.xml
+++ b/addons/mail/static/src/views/web/fields/emojis_field_common/emojis_field_common.xml
@@ -8,7 +8,7 @@
                 t-attf-class="{{positionCenter ? 'pb-0 pt-0' : 'bottom-0'}}"
                 t-ref="emojisButton"
             >
-                <i class="fa fa-smile-o" role="img" aria-label="Emojis"/>
+                <i class="oi oi-smile-add" role="img" aria-label="Emojis"/>
             </button>
         </div>
     </t>
diff --git a/addons/mail/static/tests/web/fields/emojis_fields_tests.js b/addons/mail/static/tests/web/fields/emojis_fields_tests.js
index 0c8c3012943..52f5ce5b275 100644
--- a/addons/mail/static/tests/web/fields/emojis_fields_tests.js
+++ b/addons/mail/static/tests/web/fields/emojis_fields_tests.js
@@ -18,7 +18,7 @@ export async function testEmojiButtonVisible(selector) {
     await contains(".o_form_editable");
     await contains(selector);
     await contains(`${selector} button`);
-    await contains(`${selector} button .fa-smile-o`);
+    await contains(`${selector} button .oi-smile-add`);
 }
 
 /**
diff --git a/addons/web/static/lib/odoo_ui_icons/fonts/odoo_ui_icons.woff b/addons/web/static/lib/odoo_ui_icons/fonts/odoo_ui_icons.woff
index 90b4f14f7cc..17b8af7e8df 100644
Binary files a/addons/web/static/lib/odoo_ui_icons/fonts/odoo_ui_icons.woff and b/addons/web/static/lib/odoo_ui_icons/fonts/odoo_ui_icons.woff differ
diff --git a/addons/web/static/lib/odoo_ui_icons/fonts/odoo_ui_icons.woff2 b/addons/web/static/lib/odoo_ui_icons/fonts/odoo_ui_icons.woff2
index 48b0cc7882e..3dd3881e032 100644
Binary files a/addons/web/static/lib/odoo_ui_icons/fonts/odoo_ui_icons.woff2 and b/addons/web/static/lib/odoo_ui_icons/fonts/odoo_ui_icons.woff2 differ
diff --git a/addons/web/static/lib/odoo_ui_icons/style.css b/addons/web/static/lib/odoo_ui_icons/style.css
index c4506483947..954606dff88 100644
--- a/addons/web/static/lib/odoo_ui_icons/style.css
+++ b/addons/web/static/lib/odoo_ui_icons/style.css
@@ -63,3 +63,4 @@
 .oi-archive:before { content: '\e862'; }
 .oi-unarchive:before { content: '\e863'; }
 .oi-text-effect:before { content: '\e827'; }
+.oi-smile-add:before { content: '\e84e'; }