diff --git a/changelogs/fragments/62062-os_network-openstacksdk-min.yml b/changelogs/fragments/62062-os_network-openstacksdk-min.yml
new file mode 100644
index 00000000..e450ec74
--- /dev/null
+++ b/changelogs/fragments/62062-os_network-openstacksdk-min.yml
@@ -0,0 +1,3 @@
+bugfixes:
+  - Bump the minimum openstacksdk version to 0.18.0 when os_network
+    uses the port_security_enabled or mtu arguments.
diff --git a/changelogs/fragments/64495-os_network-openstacksdk-min.yml b/changelogs/fragments/64495-os_network-openstacksdk-min.yml
index 7fd35acb..ff7ec13b 100644
--- a/changelogs/fragments/64495-os_network-openstacksdk-min.yml
+++ b/changelogs/fragments/64495-os_network-openstacksdk-min.yml
@@ -1,3 +1,3 @@
 bugfixes:
-  - bump the minimum openstacksdk version when os_network
-    uses the dns_domain argument
+  - Bump the minimum openstacksdk version to 0.29.0 when os_network
+    uses the dns_domain argument.
diff --git a/plugins/modules/os_network.py b/plugins/modules/os_network.py
index 163ecd11..ec5f79b3 100644
--- a/plugins/modules/os_network.py
+++ b/plugins/modules/os_network.py
@@ -67,13 +67,13 @@ options:
      description:
         -  Whether port security is enabled on the network or not.
            Network will use OpenStack defaults if this option is
-           not utilised.
+           not utilised. Requires openstacksdk>=0.18.
      type: bool
    mtu:
      description:
        -  The maximum transmission unit (MTU) value to address fragmentation.
           Network will use OpenStack defaults if this option is
-          not provided.
+          not provided. Requires openstacksdk>=0.18.
      type: int
    dns_domain:
      description:
@@ -195,16 +195,22 @@ def main():
     provider_segmentation_id = module.params['provider_segmentation_id']
     project = module.params['project']
 
-    net_create_kwargs = {
-        'port_security_enabled': module.params['port_security_enabled'],
-        'mtu_size': module.params['mtu']
-    }
+    net_create_kwargs = {}
+    min_version = None
+
+    if module.params['mtu'] is not None:
+        min_version = '0.18.0'
+        net_create_kwargs['mtu_size'] = module.params['mtu']
+
+    if module.params['port_security_enabled'] is not None:
+        min_version = '0.18.0'
+        net_create_kwargs['port_security_enabled'] = module.params['port_security_enabled']
 
     if module.params['dns_domain'] is not None:
-        sdk, cloud = openstack_cloud_from_module(module, min_version='0.29.0')
+        min_version = '0.29.0'
         net_create_kwargs['dns_domain'] = module.params['dns_domain']
-    else:
-        sdk, cloud = openstack_cloud_from_module(module)
+
+    sdk, cloud = openstack_cloud_from_module(module, min_version)
     try:
         if project is not None:
             proj = cloud.get_project(project)