diff --git a/defaults/main.yml b/defaults/main.yml
index a03353b..6109106 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -15,8 +15,8 @@ virtualization_centos6_packages:
 virtualization_centos_netinst_url: "http://mi.mirror.garr.it/mirrors/CentOS/7/os/x86_64/"
 virtualization_os_boot_dir: /var/lib/libvirt/boot
 virtualization_os_boot_images:
-  - "http://centos.mirror.garr.it/centos/7.7.1908/isos/x86_64/CentOS-7-x86_64-Minimal-1908.iso"
-  - "http://releases.ubuntu.com/bionic/ubuntu-18.04.3-live-server-amd64.iso"
+  - "http://centos.mirror.garr.it/centos/7/isos/x86_64/CentOS-7-x86_64-Minimal-2009.iso"
+  - "http://releases.ubuntu.com/bionic/ubuntu-18.04.6-live-server-amd64.iso"
   - "https://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.qcow2"
   - "https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.img"