diff --git a/Dockerfile b/Dockerfile
index e57022d..16766fb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,6 +20,9 @@ ENV TZ=Europe/Paris
 COPY . /opt/rawdog
 COPY ./crontabs /etc/crontabs/root
 
+RUN chown root:root /etc/crontabs/root && \
+    chmod 600 /etc/crontabs/root
+
 WORKDIR /opt/rawdog
 
 VOLUME /opt/rawdog/public
diff --git a/crontabs b/crontabs
index 26488c2..ef4471f 100644
--- a/crontabs
+++ b/crontabs
@@ -1 +1 @@
-0	4	*	*	*	/opt/rawdog/startup
+0       4       *       *       *       /bin/sh /opt/rawdog/startup
diff --git a/docker-compose.yml b/docker-compose.yml
index cc88f6d..d85a5ce 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -9,7 +9,7 @@ services:
     image: rawdog:0.1
     restart: always
     entrypoint: /usr/sbin/crond
-    command: ["-f", "-l", "2", "-L", "/dev/stdout"]
+    command: ["-f", "-l", "8", "-L", "/dev/stdout"]
     volumes:
       - ${PWD}/public:/opt/rawdog/public:rw
     environment: