diff --git a/Dockerfile b/Dockerfile
index e5f0d71b..ceba05cd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -38,7 +38,7 @@ RUN MEDIAWIKI_BRANCH="REL$(echo $MEDIAWIKI_VERSION | cut -d. -f-2 | sed 's/\./_/
 # /usr/bin/composer만 복사해 사용하여야 합니다.
 # See 'PHP version & extensions' section on https://hub.docker.com/_/composer for more details.
 #
-FROM --platform=$TARGETPLATFORM composer:2.6.5 AS composer
+FROM --platform=$TARGETPLATFORM composer:2.6.6 AS composer
 
 #
 # 미디어위키 다운로드 스테이지. 다운받은 확장기능에 더해 미디어위키를 추가로 받고