diff --git a/web/tests/test_waitlist.py b/web/tests/test_waitlist.py
index 720a579..cef4250 100644
--- a/web/tests/test_waitlist.py
+++ b/web/tests/test_waitlist.py
@@ -304,7 +304,7 @@ class TestAuthRoutes:
 
             mock_enqueue.assert_called_once_with(
                 "send_waitlist_confirmation",
-                {"email": "new@example.com", "intent": "signup"}
+                {"email": "new@example.com", "intent": "signup", "lang": "en"}
             )
 
     @pytest.mark.asyncio
@@ -393,7 +393,7 @@ class TestAuthRoutes:
                 "email": "test@example.com",
             })
 
-            mock_create_aud.assert_called_once_with({"name": "waitlist-auth"})
+            mock_create_aud.assert_called_once_with({"name": "newsletter"})
             mock_create_contact.assert_called_once()
             call_args = mock_create_contact.call_args[0][0]
             assert call_args["email"] == "test@example.com"
@@ -445,8 +445,8 @@ class TestAuthRoutes:
             audience_names = [
                 call[0][0]["name"] for call in mock_create_aud.call_args_list
             ]
-            assert "waitlist-auth" in audience_names
-            assert "waitlist-suppliers" in audience_names
+            assert "newsletter" in audience_names
+            assert "suppliers" in audience_names
 
             contact_audience_ids = [
                 call[0][0]["audience_id"] for call in mock_create_contact.call_args_list
@@ -532,7 +532,7 @@ class TestSupplierRoutes:
 
             mock_enqueue.assert_called_once_with(
                 "send_waitlist_confirmation",
-                {"email": "supplier@example.com", "intent": "supplier_pro"}
+                {"email": "supplier@example.com", "intent": "supplier_pro", "lang": "en"}
             )
 
     @pytest.mark.asyncio
@@ -874,7 +874,7 @@ class TestCaptureWaitlistEmail:
             # Email should have intent="supplier_pro" (plan name)
             mock_enqueue.assert_called_with(
                 "send_waitlist_confirmation",
-                {"email": "test@example.com", "intent": "supplier_pro"}
+                {"email": "test@example.com", "intent": "supplier_pro", "lang": "en"}
             )