diff --git a/src/backend/core/models.py b/src/backend/core/models.py
index 4c1a49b..3f55d0e 100644
--- a/src/backend/core/models.py
+++ b/src/backend/core/models.py
@@ -21,8 +21,8 @@ from django.core.exceptions import ValidationError
 from django.db import models, transaction
 from django.template.loader import render_to_string
 from django.utils import timezone
+from django.utils.translation import gettext, override
 from django.utils.translation import gettext_lazy as _
-from django.utils.translation import override
 
 import jsonschema
 from timezone_field import TimeZoneField
@@ -961,14 +961,15 @@ class Invitation(BaseModel):
         """Email invitation to the user."""
         try:
             with override(self.issuer.language):
+                subject = gettext("Invitation to join La Régie!")
                 template_vars = {
-                    "title": _("Invitation to join La Régie!"),
+                    "title": subject,
                     "site": Site.objects.get_current(),
                 }
                 msg_html = render_to_string("mail/html/invitation.html", template_vars)
                 msg_plain = render_to_string("mail/text/invitation.txt", template_vars)
                 mail.send_mail(
-                    _("Invitation to join La Régie!"),
+                    subject,
                     msg_plain,
                     settings.EMAIL_FROM,
                     [self.email],
diff --git a/src/backend/core/tests/test_models_invitations.py b/src/backend/core/tests/test_models_invitations.py
index ea75b58..03e0810 100644
--- a/src/backend/core/tests/test_models_invitations.py
+++ b/src/backend/core/tests/test_models_invitations.py
@@ -248,7 +248,9 @@ def test_models_team_invitations_email():
     assert len(mail.outbox) == 0
 
     factories.TeamAccessFactory(team=team)
-    invitation = factories.InvitationFactory(team=team, email="john@people.com")
+    invitation = factories.InvitationFactory(
+        team=team, email="john@people.com", issuer__language="fr-fr"
+    )
 
     # pylint: disable-next=no-member
     assert len(mail.outbox) == 1
@@ -257,10 +259,10 @@ def test_models_team_invitations_email():
     email = mail.outbox[0]
 
     assert email.to == [invitation.email]
-    assert email.subject == "Invitation to join La Régie!"
+    assert email.subject == "Invitation à rejoindre La Régie!"
 
     email_content = " ".join(email.body.split())
-    assert "Invitation to join La Régie!" in email_content
+    assert "Invitation à rejoindre La Régie!" in email_content
     assert "[//example.com]" in email_content
 
 
diff --git a/src/backend/locale/fr_FR/LC_MESSAGES/django.mo b/src/backend/locale/fr_FR/LC_MESSAGES/django.mo
index a5b7ee5..c5a31a3 100644
Binary files a/src/backend/locale/fr_FR/LC_MESSAGES/django.mo and b/src/backend/locale/fr_FR/LC_MESSAGES/django.mo differ