diff --git a/app/notify_client/api_client.py b/app/notify_client/api_client.py
index 6d2a2016a..719f015b5 100644
--- a/app/notify_client/api_client.py
+++ b/app/notify_client/api_client.py
@@ -68,7 +68,7 @@ class NotificationsAdminAPIClient(NotificationsAPIClient):
             "users": users
         }
         endpoint = "/service/{0}".format(service_id)
-        return self.put(endpoint, data)
+        return self.post(endpoint, data)
 
     def create_service_template(self, name, type_, content, service_id, subject=None):
         """