diff --git a/docker/cron.dockerfile b/docker/cron.dockerfile
index 17245706..3dc21ee2 100644
--- a/docker/cron.dockerfile
+++ b/docker/cron.dockerfile
@@ -1,10 +1,10 @@
-FROM php:8.1-fpm-alpine
+FROM php:8.1-fpm-bookworm
 
-RUN apk add --no-cache \
-    php81-bcmath
+RUN apt update && apt install -y cron
 
 RUN docker-php-ext-install pdo pdo_mysql bcmath
 
-COPY /docker/crontab /etc/crontabs/root
+COPY docker/crontab /etc/crontabs/root
+RUN crontab /etc/crontabs/root
 
-CMD ["crond", "-f"]
+CMD ["/usr/sbin/cron", "-f"]