diff --git a/data/Dockerfiles/dockerapi/Dockerfile b/data/Dockerfiles/dockerapi/Dockerfile
index 92c19dcc1..bbd4542e6 100644
--- a/data/Dockerfiles/dockerapi/Dockerfile
+++ b/data/Dockerfiles/dockerapi/Dockerfile
@@ -24,4 +24,4 @@ COPY main.py /app/main.py
 COPY modules/ /app/modules/
 
 ENTRYPOINT ["/bin/sh", "/app/docker-entrypoint.sh"]
-CMD exec python main.py
\ No newline at end of file
+CMD ["python", "main.py"]
\ No newline at end of file
diff --git a/data/Dockerfiles/postfix/Dockerfile b/data/Dockerfiles/postfix/Dockerfile
index 0f1911c62..5449360b3 100644
--- a/data/Dockerfiles/postfix/Dockerfile
+++ b/data/Dockerfiles/postfix/Dockerfile
@@ -60,4 +60,4 @@ EXPOSE 588
 
 ENTRYPOINT ["/docker-entrypoint.sh"]
 
-CMD exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
+CMD ["/usr/bin/supervisord", "-c", "/etc/supervisor/supervisord.conf"]
diff --git a/data/Dockerfiles/sogo/Dockerfile b/data/Dockerfiles/sogo/Dockerfile
index 2485b6a8e..7b8b1c717 100644
--- a/data/Dockerfiles/sogo/Dockerfile
+++ b/data/Dockerfiles/sogo/Dockerfile
@@ -55,4 +55,4 @@ RUN chmod +x /bootstrap-sogo.sh \
 
 ENTRYPOINT ["/docker-entrypoint.sh"]
 
-CMD exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
\ No newline at end of file
+CMD ["/usr/bin/supervisord", "-c", "/etc/supervisor/supervisord.conf"]
\ No newline at end of file
diff --git a/data/Dockerfiles/unbound/Dockerfile b/data/Dockerfiles/unbound/Dockerfile
index fc7b14817..7e4f18dec 100644
--- a/data/Dockerfiles/unbound/Dockerfile
+++ b/data/Dockerfiles/unbound/Dockerfile
@@ -33,4 +33,4 @@ HEALTHCHECK --interval=30s --timeout=10s \
   CMD sh -c '[ -f /tmp/healthcheck_status ] && [ "$(cat /tmp/healthcheck_status)" -eq 0 ] || exit 1'
 
 ENTRYPOINT ["/docker-entrypoint.sh"]
-CMD exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
+CMD ["/usr/bin/supervisord", "-c", "/etc/supervisor/supervisord.conf"]
diff --git a/data/Dockerfiles/watchdog/Dockerfile b/data/Dockerfiles/watchdog/Dockerfile
index 0f3e7dfb9..f8aa262bb 100644
--- a/data/Dockerfiles/watchdog/Dockerfile
+++ b/data/Dockerfiles/watchdog/Dockerfile
@@ -37,4 +37,4 @@ RUN apk add --update \
 COPY watchdog.sh /watchdog.sh
 COPY check_mysql_slavestatus.sh /usr/lib/nagios/plugins/check_mysql_slavestatus.sh
 
-CMD /watchdog.sh
+CMD ["/watchdog.sh"]