diff --git a/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogAction.xml b/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogAction.xml
index 292fd9c23..93167a695 100644
--- a/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogAction.xml
+++ b/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogAction.xml
@@ -331,6 +331,47 @@
         <type>text</type>
         <help>The API token. Required.</help>
     </field>
+    <field>
+        <label>Required Parameters</label>
+        <type>header</type>
+        <style>method_table method_table_acme_proxmoxbs</style>
+    </field>
+    <field>
+        <id>action.acme_proxmoxbs_user</id>
+        <label>Proxmox BS user</label>
+        <type>text</type>
+        <help>The user who owns the API key. Defaults to root.</help>
+    </field>
+    <field>
+        <id>action.acme_proxmoxbs_server</id>
+        <label>Proxmox BS server</label>
+        <type>text</type>
+        <help>The hostname of the proxmox BS node.</help>
+    </field>
+    <field>
+        <id>action.acme_proxmoxbs_port</id>
+        <label>Proxmox BS server port</label>
+        <type>text</type>
+        <help>The port number the management interface is on. Defaults to 8007.</help>
+    </field>
+    <field>
+        <id>action.acme_proxmoxbs_realm</id>
+        <label>Proxmox BS realm</label>
+        <type>text</type>
+        <help>The authentication realm the user authenticates with. Defaults to pam.</help>
+    </field>
+    <field>
+        <id>action.acme_proxmoxbs_tokenid</id>
+        <label>Proxmox BS token name</label>
+        <type>text</type>
+        <help>The name of the API token created for the user account. Defaults to acme.</help>
+    </field>
+    <field>
+        <id>action.acme_proxmoxbs_tokenkey</id>
+        <label>Proxmox BS token key</label>
+        <type>text</type>
+        <help>The API token. Required.</help>
+    </field>
     <field>
         <label>Required Parameters</label>
         <type>header</type>
diff --git a/security/acme-client/src/opnsense/mvc/app/library/OPNsense/AcmeClient/LeAutomation/AcmeProxmoxbs.php b/security/acme-client/src/opnsense/mvc/app/library/OPNsense/AcmeClient/LeAutomation/AcmeProxmoxbs.php
new file mode 100644
index 000000000..5a2c6b701
--- /dev/null
+++ b/security/acme-client/src/opnsense/mvc/app/library/OPNsense/AcmeClient/LeAutomation/AcmeProxmoxbs.php
@@ -0,0 +1,50 @@
+<?php
+
+/*
+ * Copyright (C) 2025 Yann Demoulin
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+namespace OPNsense\AcmeClient\LeAutomation;
+
+use OPNsense\AcmeClient\LeAutomationInterface;
+
+/**
+ * Run acme.sh deploy hook proxmoxbs
+ * @package OPNsense\AcmeClient
+ */
+class AcmeProxmoxbs extends Base implements LeAutomationInterface
+{
+    public function prepare()
+    {
+        $this->acme_env['DEPLOY_PROXMOXBS_USER'] = (string)$this->config->acme_proxmoxbs_user;
+        $this->acme_env['DEPLOY_PROXMOXBS_SERVER'] = (string)$this->config->acme_proxmoxbs_server;
+        $this->acme_env['DEPLOY_PROXMOXBS_SERVER_PORT'] = (string)$this->config->acme_proxmoxbs_port;
+        $this->acme_env['DEPLOY_PROXMOXBS_USER_REALM'] = (string)$this->config->acme_proxmoxbs_realm;
+        $this->acme_env['DEPLOY_PROXMOXBS_API_TOKEN_NAME'] = (string)$this->config->acme_proxmoxbs_tokenid;
+        $this->acme_env['DEPLOY_PROXMOXBS_API_TOKEN_KEY'] = (string)$this->config->acme_proxmoxbs_tokenkey;
+        $this->acme_args[] = '--deploy-hook proxmoxbs';
+        return true;
+    }
+}
diff --git a/security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml b/security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml
index 2127a7bc6..76e57c6df 100644
--- a/security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml
+++ b/security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml
@@ -1350,6 +1350,7 @@
                         <configd_remote_ssh>Remote Command via SSH</configd_remote_ssh>
                         <acme_fritzbox>Upload certificate to FRITZ!Box router</acme_fritzbox>
                         <acme_panos>Upload certificate to Palo Alto Networks Firewall</acme_panos>
+                        <acme_proxmoxbs>Upload certificate to Proxmox Backup Environment</acme_proxmoxbs>
                         <acme_proxmoxve>Upload certificate to Proxmox VE</acme_proxmoxve>
                         <acme_vault>Upload certificate to HashiCorp Vault</acme_vault>
                         <acme_synology_dsm>Upload certificate to Synology DSM</acme_synology_dsm>
@@ -1601,6 +1602,44 @@
                     <Mask>/^.{1,1024}$/u</Mask>
                     <ValidationMessage>Should be a string between 1 and 1024 characters.</ValidationMessage>
                 </acme_proxmoxve_tokenkey>
+                <acme_proxmoxbs_user type="TextField">
+                    <default>root</default>
+                    <Required>N</Required>
+                    <mask>/^.{1,1024}$/u</mask>
+                    <ValidationMessage>Should be a string between 1 and 1024 characters.</ValidationMessage>
+                </acme_proxmoxbs_user>
+                <acme_proxmoxbs_server type="TextField">
+                    <Required>N</Required>
+                    <mask>/^.{1,1024}$/u</mask>
+                    <ValidationMessage>Should be a string between 1 and 1024 characters.</ValidationMessage>
+                </acme_proxmoxbs_server>
+                <acme_proxmoxbs_port type="PortField">
+                    <default>8007</default>
+                    <Required>N</Required>
+                </acme_proxmoxbs_port>
+                <acme_proxmoxbs_nodename type="TextField">
+                    <Required>N</Required>
+                    <default>localhost</default>
+                    <mask>/^.{1,1024}$/u</mask>
+                    <ValidationMessage>Should be a string between 1 and 1024 characters.</ValidationMessage>
+                </acme_proxmoxbs_nodename>
+                <acme_proxmoxbs_realm type="TextField">
+                    <default>pam</default>
+                    <Required>N</Required>
+                    <mask>/^.{1,1024}$/u</mask>
+                    <ValidationMessage>Should be a string between 1 and 1024 characters.</ValidationMessage>
+                </acme_proxmoxbs_realm>
+                <acme_proxmoxbs_tokenid type="TextField">
+                    <default>acme</default>
+                    <Required>N</Required>
+                    <mask>/^.{1,1024}$/u</mask>
+                    <ValidationMessage>Should be a string between 1 and 1024 characters.</ValidationMessage>
+                </acme_proxmoxbs_tokenid>
+                <acme_proxmoxbs_tokenkey type="TextField">
+                    <Required>N</Required>
+                    <mask>/^.{1,1024}$/u</mask>
+                    <ValidationMessage>Should be a string between 1 and 1024 characters.</ValidationMessage>
+                </acme_proxmoxbs_tokenkey>
                 <acme_truenas_apikey type="TextField">
                     <Required>N</Required>
                     <Mask>/^.{1,1024}$/u</Mask>