diff --git a/changelogs/fragments/9066-proxmox-kvm-ciupgrade.yml b/changelogs/fragments/9066-proxmox-kvm-ciupgrade.yml
new file mode 100644
index 0000000000..91e9127b70
--- /dev/null
+++ b/changelogs/fragments/9066-proxmox-kvm-ciupgrade.yml
@@ -0,0 +1,2 @@
+minor_changes:
+  - proxmox_kvm - adds the ``ciupgrade`` parameter to specify whether cloud-init should upgrade system packages at first boot (https://github.com/ansible-collections/community.general/pull/9066).
diff --git a/plugins/modules/proxmox_kvm.py b/plugins/modules/proxmox_kvm.py
index cac3496228..0c9904873d 100644
--- a/plugins/modules/proxmox_kvm.py
+++ b/plugins/modules/proxmox_kvm.py
@@ -86,6 +86,11 @@ options:
     type: str
     choices: ['nocloud', 'configdrive2']
     version_added: 1.3.0
+  ciupgrade:
+    description:
+      - 'cloud-init: do an automatic package upgrade after the first boot.'
+    type: bool
+    version_added: 10.0.0
   ciuser:
     description:
       - 'cloud-init: username of default user to create.'
@@ -984,6 +989,7 @@ class ProxmoxKvmAnsible(ProxmoxAnsible):
         # Available only in PVE 4
         only_v4 = ['force', 'protection', 'skiplock']
         only_v6 = ['ciuser', 'cipassword', 'sshkeys', 'ipconfig', 'tags']
+        only_v8 = ['ciupgrade']
 
         # valid clone parameters
         valid_clone_params = ['format', 'full', 'pool', 'snapname', 'storage', 'target']
@@ -1012,6 +1018,12 @@ class ProxmoxKvmAnsible(ProxmoxAnsible):
                 if p in kwargs:
                     del kwargs[p]
 
+        # The features work only on PVE 8
+        if pve_major_version < 8:
+            for p in only_v8:
+                if p in kwargs:
+                    del kwargs[p]
+
         # 'sshkeys' param expects an urlencoded string
         if 'sshkeys' in kwargs:
             urlencoded_ssh_keys = quote(kwargs['sshkeys'], safe='')
@@ -1207,6 +1219,7 @@ def main():
         cicustom=dict(type='str'),
         cipassword=dict(type='str', no_log=True),
         citype=dict(type='str', choices=['nocloud', 'configdrive2']),
+        ciupgrade=dict(type='bool'),
         ciuser=dict(type='str'),
         clone=dict(type='str'),
         cores=dict(type='int'),
@@ -1414,6 +1427,7 @@ def main():
                               cicustom=module.params['cicustom'],
                               cipassword=module.params['cipassword'],
                               citype=module.params['citype'],
+                              ciupgrade=module.params['ciupgrade'],
                               ciuser=module.params['ciuser'],
                               cpulimit=module.params['cpulimit'],
                               cpuunits=module.params['cpuunits'],