diff --git a/app/notify_client/organisations_api_client.py b/app/notify_client/organisations_api_client.py
index 467ab6791..c073ba9b2 100644
--- a/app/notify_client/organisations_api_client.py
+++ b/app/notify_client/organisations_api_client.py
@@ -3,7 +3,7 @@ from itertools import chain
 from notifications_python_client.errors import HTTPError
 
 from app.extensions import redis_client
-from app.notify_client import NotifyAdminAPIClient, _attach_current_user, cache
+from app.notify_client import NotifyAdminAPIClient, cache
 
 
 class OrganisationsClient(NotifyAdminAPIClient):
@@ -76,10 +76,9 @@ class OrganisationsClient(NotifyAdminAPIClient):
     def get_organisation_services(self, org_id):
         return self.get(url="/organisations/{}/services".format(org_id))
 
+    @cache.delete('user-{user_id}')
     def remove_user_from_organisation(self, org_id, user_id):
-        endpoint = '/organisations/{}/users/{}'.format(org_id, user_id)
-        data = _attach_current_user({})
-        return self.delete(endpoint, data)
+        return self.delete(f'/organisations/{org_id}/users/{user_id}')
 
     def get_services_and_usage(self, org_id, year):
         return self.get(
diff --git a/tests/app/notify_client/test_organisation_client.py b/tests/app/notify_client/test_organisation_client.py
index aba5fa5c1..92b0e7167 100644
--- a/tests/app/notify_client/test_organisation_client.py
+++ b/tests/app/notify_client/test_organisation_client.py
@@ -229,3 +229,19 @@ def test_update_service_organisation_deletes_cache(mocker, fake_uuid):
         url='/organisations/{}/service'.format(fake_uuid),
         data=ANY
     )
+
+
+def test_remove_user_from_organisation_deletes_user_cache(mocker):
+    mock_redis_delete = mocker.patch('app.extensions.RedisClient.delete')
+    mock_delete = mocker.patch('app.notify_client.organisations_api_client.OrganisationsClient.delete')
+
+    org_id = 'abcd-1234'
+    user_id = 'efgh-5678'
+
+    organisations_client.remove_user_from_organisation(
+        org_id=org_id,
+        user_id=user_id,
+    )
+
+    assert mock_redis_delete.call_args_list == [call(f'user-{user_id}')]
+    mock_delete.assert_called_with(f'/organisations/{org_id}/users/{user_id}')