diff --git a/.docker/images/php/cron/Dockerfile b/.docker/images/php/cron/Dockerfile
index 3dabcb961..1398d14bc 100644
--- a/.docker/images/php/cron/Dockerfile
+++ b/.docker/images/php/cron/Dockerfile
@@ -5,6 +5,7 @@ COPY ./images/php/cron/conf.d/psc /etc/cron.d/
 COPY ./images/php/cron/bin/ /usr/bin/
 RUN chmod +x /usr/bin/start-cron.sh
 RUN chmod +x /usr/bin/set-env.sh
+RUN chmod 0600 /etc/cron.d/psc
 
 RUN apt-get update && apt-get install -y cron rsyslog
 RUN sed -i '/imklog/s/^/#/' /etc/rsyslog.conf