diff --git a/main.tf b/main.tf
index 222df22d2a97605415ac601d7e4cc9b698bd739a..5d0c9c3e6290c513fc6791090e3df7e55f54e4ad 100644
--- a/main.tf
+++ b/main.tf
@@ -72,7 +72,7 @@ module "create-ohpc-instance" {
     floating_ip_ohpc = module.floating-ip-address.ohpc_address
     ohpc_user =  var.ohpc_user
     ssh_private_key = var.ssh_private_key
-    vol_id = data.openstack_blockstorage_volume_v2.disk.id
+    vol_id = data.openstack_blockstorage_volume_v3.disk.id
 }
 
 # runs the ood-instance module - creates ood instance using variables defined above