diff --git a/README.md b/README.md
index bcedb95..08bd762 100644
--- a/README.md
+++ b/README.md
@@ -14,8 +14,8 @@ The easiest way to run your hosts against the CIS Docker 1.6 benchmark is by run
 
 
 ```
-docker run -it --net host --pid host -v /var/run/docker.sock:/var/run/docker.sock \
--v /usr/lib/systemd:/usr/lib/systemd -v /etc:/etc --label docker-bench-security \
+docker run -it --net host --pid host -v /var/run/docker.sock:/var/run/docker.sock:ro \
+-v /usr/lib/systemd:/usr/lib/systemd:ro -v /etc:/etc:ro --label docker-bench-security \
 diogomonica/docker-bench-security
 ```
 
@@ -30,8 +30,8 @@ If you wish to build and run this container yourself, you can follow the followi
 ```
 git clone https://github.com/diogomonica/docker-bench-security.git
 cd docker-bench-security; docker build -t docker-bench-security .
-docker run -it --net host --pid host -v /var/run/docker.sock:/var/run/docker.sock \
--v /usr/lib/systemd:/usr/lib/systemd -v /etc:/etc --label security-benchmark \
+docker run -it --net host --pid host -v /var/run/docker.sock:/var/run/docker.sock:ro \
+-v /usr/lib/systemd:/usr/lib/systemd:ro -v /etc:/etc:ro --label security-benchmark \
 docker-bench-security
 ```