diff --git a/translations/ja-JP/content/actions/creating-actions/dockerfile-support-for-github-actions.md b/translations/ja-JP/content/actions/creating-actions/dockerfile-support-for-github-actions.md
index af39889352a5..0fd9ec4efb5a 100644
--- a/translations/ja-JP/content/actions/creating-actions/dockerfile-support-for-github-actions.md
+++ b/translations/ja-JP/content/actions/creating-actions/dockerfile-support-for-github-actions.md
@@ -67,7 +67,7 @@ ENTRYPOINT ["sh", "-c", "echo $GITHUB_SHA"]
 ```dockerfile
 # コードを実行するコンテナイメージ
 FROM debian:stretch-20210816-slim
-FROM debian:stretch-20210902-slim
+FROM debian:9-slim
 
 # アクションのリポジトリからコードをコンテナのファイルシステムパス `/` にコピー
 COPY entrypoint.sh /entrypoint.sh