diff --git a/changelogs/fragments/9959-update-opennebula-onevm-updateconf-params.yml b/changelogs/fragments/9959-update-opennebula-onevm-updateconf-params.yml
new file mode 100644
index 0000000000..955c43647d
--- /dev/null
+++ b/changelogs/fragments/9959-update-opennebula-onevm-updateconf-params.yml
@@ -0,0 +1,11 @@
+minor_changes:
+  - |
+    Update `UPDATECONF_ATTRIBUTES` in `one_vm.py` to include new parameters as per the latest OpenNebula API documentation.
+    Added parameters:
+    - OS: FIRMWARE
+    - CPU_MODEL: MODEL, FEATURES
+    - FEATURES: VIRTIO_BLK_QUEUES, VIRTIO_SCSI_QUEUES, IOTHREADS
+    - GRAPHICS: PORT, COMMAND
+    - VIDEO: ATS, IOMMU, RESOLUTION, TYPE, VRAM
+    - RAW: VALIDATE
+    - BACKUP_CONFIG: FS_FREEZE, KEEP_LAST, BACKUP_VOLATILE, MODE, INCREMENT_MODE
\ No newline at end of file
diff --git a/plugins/modules/one_vm.py b/plugins/modules/one_vm.py
index 0b6d27aae9..c960969732 100644
--- a/plugins/modules/one_vm.py
+++ b/plugins/modules/one_vm.py
@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 # Copyright (c) 2017, Milan Ilic <milani@nordeus.com>
 # Copyright (c) 2019, Jan Meerkamp <meerkamp@dvv.de>
+# Copyright (c) 2025, Tom Paine <github@aioue.net>
 # GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
@@ -658,13 +659,17 @@ from ansible.module_utils.common.dict_transformations import dict_merge
 from ansible_collections.community.general.plugins.module_utils.opennebula import flatten, render
 
 
+# https://docs.opennebula.io/6.10/integration_and_development/system_interfaces/api.html#one-vm-updateconf
 UPDATECONF_ATTRIBUTES = {
-    "OS": ["ARCH", "MACHINE", "KERNEL", "INITRD", "BOOTLOADER", "BOOT", "SD_DISK_BUS", "UUID"],
-    "FEATURES": ["ACPI", "PAE", "APIC", "LOCALTIME", "HYPERV", "GUEST_AGENT"],
+    "OS": ["ARCH", "MACHINE", "KERNEL", "INITRD", "BOOTLOADER", "BOOT", "SD_DISK_BUS", "UUID", "FIRMWARE"],
+    "CPU_MODEL": ["MODEL", "FEATURES"],
+    "FEATURES": ["ACPI", "PAE", "APIC", "LOCALTIME", "HYPERV", "GUEST_AGENT", "VIRTIO_BLK_QUEUES", "VIRTIO_SCSI_QUEUES", "IOTHREADS"],
     "INPUT": ["TYPE", "BUS"],
-    "GRAPHICS": ["TYPE", "LISTEN", "PASSWD", "KEYMAP"],
-    "RAW": ["DATA", "DATA_VMX", "TYPE"],
+    "GRAPHICS": ["TYPE", "LISTEN", "PORT", "PASSWD", "KEYMAP", "COMMAND"],
+    "VIDEO": ["ATS", "IOMMU", "RESOLUTION", "TYPE", "VRAM"],
+    "RAW": ["DATA", "DATA_VMX", "TYPE", "VALIDATE"],
     "CONTEXT": [],
+    "BACKUP_CONFIG": ["FS_FREEZE", "KEEP_LAST", "BACKUP_VOLATILE", "MODE", "INCREMENT_MODE"]
 }