diff --git a/Dockerfile b/Dockerfile
index fd1846e..5e4d247 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,12 +12,10 @@ LABEL "com.github.actions.color"="green"
 
 LABEL "maintainer"="Scott Brenner <scott@scottbrenner.me>"
 
-RUN apk update && apk upgrade
-RUN apk add python3
-RUN rm -rf /var/cache/apk/*
+RUN apk --no-cache add python3
 RUN pip3 install cfn-lint
 
 COPY entrypoint.sh /entrypoint.sh
 RUN ["chmod", "+x", "/entrypoint.sh"]
 ENTRYPOINT ["/entrypoint.sh"]
-CMD ["**/*.yml"]
\ No newline at end of file
+CMD ["**/*.yml"]