diff --git a/README.md b/README.md
index 4b97079..2d8e169 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ MySQL monitoring example using docker-compose to orchestrate a monitoring soluti
 * cd to monitor and run: `docker-compose up -d`
 * To install an example db node with associated collectors, cd to example_dbnode and run: `docker-compose up -d`
 * To install only the collecters using docker (not required for the example dbnode), cd to collecters and run: `docker-compose up -d`
+* Manually create external network (monitor_dbnode) which required by collectors and example_dbnode. Using the following command:`docker network create monitor_dbnode`
 
 If you want to monitor other hosts edit the prometheus config file `./prometheus/config/prometheus.yml` add additional targets or your service discovery of choice, and restart prometheus, cd to monitor and run: `docker-compose restart prometheus`
 
diff --git a/example_dbnode/sysbench/Dockerfile b/example_dbnode/sysbench/Dockerfile
index 83e5b1a..62f5052 100644
--- a/example_dbnode/sysbench/Dockerfile
+++ b/example_dbnode/sysbench/Dockerfile
@@ -2,7 +2,7 @@ FROM centos:latest
 MAINTAINER Ben Mildren
 
 RUN yum install -y http://www.percona.com/downloads/percona-release/redhat/0.1-3/percona-release-0.1-3.noarch.rpm && \
-    yum update && \
+    yum -y update && \
     sed -i 's/tsflags=nodocs//g' /etc/yum.conf && \
     yum install -y sysbench nmap && \
     yum clean all && \
diff --git a/monitor/prometheus/config/prometheus.yml b/monitor/prometheus/config/prometheus.yml
index 01c34bd..8d0740d 100644
--- a/monitor/prometheus/config/prometheus.yml
+++ b/monitor/prometheus/config/prometheus.yml
@@ -5,23 +5,23 @@ global:
  
 scrape_configs:
   - job_name: prometheus
-    target_groups:
+    static_configs:
       - targets: ['localhost:9090']
 
   - job_name: linux
-    target_groups:
+    static_configs:
       - targets: ['db1_node_exporter:9100']
         labels:
           alias: db1
 
   - job_name: docker
-    target_groups:
+    static_configs:
       - targets: ['db1_cadvisor:8080']
         labels:
           alias: db1
 
   - job_name: mysql-hres
-    target_groups:
+    static_configs:
       - targets: ['db1_mysqld_exporter_hres:9104']
         labels:
           alias: db1
@@ -29,7 +29,7 @@ scrape_configs:
   - job_name: mysql-mres
     scrape_interval: 5s
     scrape_timeout: 1s
-    target_groups:
+    static_configs:
       - targets: ['db1_mysqld_exporter_mres:9105']
         labels:
           alias: db1
@@ -37,7 +37,7 @@ scrape_configs:
   - job_name: mysql-lres
     scrape_interval: 60s
     scrape_timeout: 5s
-    target_groups:
+    static_configs:
       - targets: ['db1_mysqld_exporter_lres:9106']
         labels:
           alias: db1