diff --git a/windows-file-server/templates/fsx-windows-od-workshop.yaml b/windows-file-server/templates/fsx-windows-od-workshop.yaml
index ba5b48e..e041e07 100644
--- a/windows-file-server/templates/fsx-windows-od-workshop.yaml
+++ b/windows-file-server/templates/fsx-windows-od-workshop.yaml
@@ -492,7 +492,7 @@ Resources:
         S3Bucket: !Sub solution-references-${AWS::Region}
         S3Key: fsx/dfs/ActiveDirectoryCustomResource.zip
       Handler: ad.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs18.x
       Timeout: 30
       Role: !GetAtt LambdaExecutionRole.Arn
   ActiveDirectory: