diff --git a/docker-compose.yml b/docker-compose.yml
index 73f1bcd..e9abdb1 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -21,7 +21,8 @@ services:
     depends_on:
       - backend
     healthcheck:
-      test: ["CMD-SHELL", "wget -qO- http://localhost:80/ || exit 1"]
+      # localhost 는 일부 이미지에서 IPv6(::1) 로 먼저 풀려 IPv4 전용 바인딩에 연결 실패 → 127.0.0.1 고정
+      test: ["CMD-SHELL", "wget -qO- http://127.0.0.1:80/ || exit 1"]
       interval: 30s
       timeout: 5s
       retries: 5
@@ -68,7 +69,9 @@ services:
       redis:
         condition: service_healthy
     healthcheck:
-      test: ["CMD-SHELL", "wget -qO- http://localhost:${BACKEND_PORT}/ || exit 1"]
+      # API 는 전역 프리픽스 /api 하위에 마운트됨 — 루트(/)는 404 라 /api/health 를 프로브.
+      # localhost→IPv6(::1) 회피를 위해 127.0.0.1 고정.
+      test: ["CMD-SHELL", "wget -qO- http://127.0.0.1:${BACKEND_PORT}/api/health || exit 1"]
       interval: 30s
       timeout: 5s
       retries: 5