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 c9b7d56c2ec2..6ca9756abf6a 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
@@ -70,8 +70,7 @@ ENTRYPOINT ["sh", "-c", "echo $GITHUB_SHA"]
 #### *Dockerfile* の例
 
 ```dockerfile
-# Container image that runs your code
-FROM debian:9.5-slim
+<
 
 # Copies your code file from your action repository to the filesystem path `/` of the container
 COPY entrypoint.sh /entrypoint.sh