diff --git a/.github/workflows/preview.yml b/.github/workflows/preview.yml
index 3fb23c4..7369723 100644
--- a/.github/workflows/preview.yml
+++ b/.github/workflows/preview.yml
@@ -34,7 +34,7 @@ jobs:
 
       # OG 이미지를 CI 실행 간에 보존해 cache-cold로 매번 전부 재생성하는 것을 방지.
       - name: Cache OG images
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: public/og
           key: og-${{ hashFiles('src/og/**', 'scripts/generate-og.mts', 'public/newLogoWithText.svg', 'public/og-background.png') }}