diff --git a/metal/group_vars/all.yml b/metal/group_vars/all.yml
index 273c3bdf..b5a71cb8 100644
--- a/metal/group_vars/all.yml
+++ b/metal/group_vars/all.yml
@@ -1,4 +1,5 @@
 iso_url: "https://mirrors.nhanhoa.com/centos/8.3.2011/isos/x86_64/CentOS-8.3.2011-x86_64-dvd1.iso"
+iso_checksum: "sha256:aaf9d4b3071c16dbbda01dfe06085e5d0fdac76df323e3bbe87cce4318052247"
 
 disk: "sda"
 dns_server: "8.8.8.8"
diff --git a/metal/roles/pxe-boot/tasks/server.yml b/metal/roles/pxe-boot/tasks/server.yml
index 9aa3f222..25724111 100644
--- a/metal/roles/pxe-boot/tasks/server.yml
+++ b/metal/roles/pxe-boot/tasks/server.yml
@@ -16,6 +16,7 @@
   get_url:
     url: "{{ iso_url }}"
     dest: "{{ role_path }}/build/images/centos8.iso"
+    checksum: "{{ iso_checksum }}"
   delegate_to: localhost
 
 - name: Mount the ISO