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 6e43dbdfa6ba..9081c63bc9ec 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
@@ -64,7 +64,7 @@ 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:9.5-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