diff --git a/.travis.yml b/.travis.yml
index e6f1f01..e7f3ef4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,11 @@
-dist: trusty # required for D-Bus >= 1.6
-sudo: false
+dist:  bionic
+os: linux
 language: c
 
 env:
+  - ZABBIX_VERSION=4.4.3
+  - ZABBIX_VERSION=4.2.8
+  - ZABBIX_VERSION=4.0.10
   - ZABBIX_VERSION=3.4.8
   - ZABBIX_VERSION=3.2.11
   - ZABBIX_VERSION=3.0.16
diff --git a/README.md b/README.md
index 7652433..5e2b22b 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Native Zabbix systemd monitoring [![Build Status](https://travis-ci.org/cavaliercoder/zabbix-module-systemd.svg?branch=master)](https://travis-ci.org/cavaliercoder/zabbix-module-systemd)
+# Native Zabbix systemd monitoring [![Build Status](https://travis-ci.org/kmonticolo/zabbix-module-systemd.svg?branch=master)](https://travis-ci.org/cavaliercoder/zabbix-module-systemd)
 
 Zabbix module that enables Zabbix to query the systemd D-Bus API for native and
 granular system state monitoring + relative cgroup (CPU, MEM, IO, ...) metrics.
@@ -47,9 +47,9 @@ for this setting may be controlled with `Default*Accounting` settings in
 Example how to enable cgroup accounting for Zabbix systemd monitoring:
 
 ```bash
-sed -i -e "s/.*DefaultCPUAccounting=.*/DefaultCPUAccounting=yes/g" /etc/systemd/system.conf
-sed -i -e "s/.*DefaultBlockIOAccounting=.*/DefaultBlockIOAccounting=yes/g" /etc/systemd/system.conf
-sed -i -e "s/.*DefaultMemoryAccounting=.*/DefaultMemoryAccounting=yes/g" /etc/systemd/system.conf
+sed -i "s/.*DefaultCPUAccounting=.*/DefaultCPUAccounting=yes/g" /etc/systemd/system.conf
+sed -i "s/.*DefaultBlockIOAccounting=.*/DefaultBlockIOAccounting=yes/g" /etc/systemd/system.conf
+sed -i "s/.*DefaultMemoryAccounting=.*/DefaultMemoryAccounting=yes/g" /etc/systemd/system.conf
 systemctl daemon-reexec
 systemctl restart zabbix-agent
 ```