diff --git a/shared-modules/compute/virtualMachine.bicep b/shared-modules/compute/virtualMachine.bicep
index c500b6b..7cbc637 100644
--- a/shared-modules/compute/virtualMachine.bicep
+++ b/shared-modules/compute/virtualMachine.bicep
@@ -177,7 +177,7 @@ resource domainJoinExtension 'Microsoft.Compute/virtualMachines/extensions@2023-
     autoUpgradeMinorVersion: true
     settings: {
       name: domainJoinInfo.adDomainFqdn
-      ouPath: domainJoinInfo.adOuPath
+      ouPath: domainJoinInfo.?adOuPath
       user: domainJoinInfo.domainJoinUsername
       restart: 'true'
       options: '3'
diff --git a/shared-modules/virtualDesktop/sessionHosts.bicep b/shared-modules/virtualDesktop/sessionHosts.bicep
index e618d82..69d4eef 100644
--- a/shared-modules/virtualDesktop/sessionHosts.bicep
+++ b/shared-modules/virtualDesktop/sessionHosts.bicep
@@ -34,7 +34,7 @@ param imageReference imageReferenceType = {
   publisher: 'microsoftwindowsdesktop'
   offer: 'office-365'
   version: 'latest'
-  sku: 'win11-23h2-avd-m365'
+  sku: 'win11-25h2-avd-m365'
 }
 
 @allowed(['ad', 'entraID'])