diff --git a/examples/docker/Makefile b/examples/docker/Makefile
index 61008bd16299e57c515d0fe3045117f75a089ef0..da726c3ccc6e2e53d106c283bbc03a6662259584 100644
--- a/examples/docker/Makefile
+++ b/examples/docker/Makefile
@@ -5,7 +5,6 @@ binaries:
 	GOOS=linux go build -o renewer/step github.com/smallstep/cli/cmd/step
 
 build: build-nginx build-ca build-renewer
-
 build-nginx:
 	docker build -t nginx-test:latest nginx
 build-ca:
@@ -21,3 +20,6 @@ down:
 
 inspect:
 	step certificate inspect https://localhost:4443 --insecure
+
+.PHONY: all binaries up down inspect
+.PHONY: build build-nginx build-ca build-renewer
diff --git a/examples/docker/renewer/crontab b/examples/docker/renewer/crontab
index db8e681bbeab853f7d6d47b83987c7c40e995939..bf6abfacfb3e6d7af2f3e4f2be03365196a2fdcf 100644
--- a/examples/docker/renewer/crontab
+++ b/examples/docker/renewer/crontab
@@ -1,2 +1,2 @@
 # min	hour	day	month	weekday	command
-*	*	*	*	*	rm -f /var/local/step/site-new.crt && step ca renew --out /var/local/step/site-new.crt /var/local/step/site.crt /var/local/step/site.key && mv /var/local/step/site-new.crt /var/local/step/site.crt
+*	*	*	*	*	step ca renew --force /var/local/step/site.crt /var/local/step/site.key
diff --git a/examples/docker/renewer/entrypoint.sh b/examples/docker/renewer/entrypoint.sh
index 6add1ed2df486f75c112f6e6e566ba56d78e9cae..dc84dcbfa8b13162d5bced86af1459160bd89edf 100755
--- a/examples/docker/renewer/entrypoint.sh
+++ b/examples/docker/renewer/entrypoint.sh
@@ -3,16 +3,16 @@
 # Wait for CA
 sleep 5
 
-if [ ! -f /var/local/step/root_ca.crt ]; then
-    # Donwload the root certificate
-    step ca root /var/local/step/root_ca.crt
-fi
+# Clean old certificates
+rm -f /var/local/step/root_ca.crt
+rm -f /var/local/step/site.crt /var/local/step/site.key
 
-if [ ! -f /var/local/step/site.crt ]; then
-    # Get token
-    STEP_TOKEN=$(step ca token $COMMON_NAME)
-    # Donwload the root certificate
-    step ca certificate --token $STEP_TOKEN $COMMON_NAME /var/local/step/site.crt /var/local/step/site.key
-fi
+# Donwload the root certificate
+step ca root /var/local/step/root_ca.crt
+
+# Get token
+STEP_TOKEN=$(step ca token $COMMON_NAME)
+# Donwload the root certificate
+step ca certificate --token $STEP_TOKEN $COMMON_NAME /var/local/step/site.crt /var/local/step/site.key
 
 exec "$@"
\ No newline at end of file