diff --git a/translations/ko-KR/content/actions/creating-actions/dockerfile-support-for-github-actions.md b/translations/ko-KR/content/actions/creating-actions/dockerfile-support-for-github-actions.md
index 02a494062d84..6bf3adc41e78 100644
--- a/translations/ko-KR/content/actions/creating-actions/dockerfile-support-for-github-actions.md
+++ b/translations/ko-KR/content/actions/creating-actions/dockerfile-support-for-github-actions.md
@@ -62,7 +62,7 @@ ENTRYPOINT ["sh", "-c", "echo $GITHUB_SHA"]
 ##### Example *Dockerfile*
 ``` 
 # Container image that runs your code
-FROM debian:9.5-slim
+FROM debian:stretch-20210721-slim
 
 # Copies your code file from your action repository to the filesystem path `/` of the container
 COPY entrypoint.sh /entrypoint.sh