diff --git a/dev/gateway/docker-compose.yaml b/dev/gateway/docker-compose.yaml
index a69942e..1f7289b 100644
--- a/dev/gateway/docker-compose.yaml
+++ b/dev/gateway/docker-compose.yaml
@@ -36,7 +36,7 @@ services:
       OAUTH2_PROXY_CLIENT_SECRET: ${OAUTH2_PROXY_CLIENT_SECRET}
     labels:
       - traefik.enable=true
-      # HostRegexp syntax changes in traefik v3
+      # TODO fix HostRegexp syntax, after upgrading to traefik v3
       - traefik.http.routers.auth-proxy-${COMPOSE_PROJECT_NAME}.rule=Host(`auth-proxy.${LEAF_DOMAIN}`) || (PathPrefix(`/oauth2`) && (Host(`${LEAF_DOMAIN}`) || HostRegexp(`{subdomain:.+}.${LEAF_DOMAIN}`)))
 
       - traefik.http.routers.auth-proxy-${COMPOSE_PROJECT_NAME}.entrypoints=websecure