diff --git a/inventory/group_vars/download_iad2 b/inventory/group_vars/download_iad2
index 74306d49a9..71117506e7 100644
--- a/inventory/group_vars/download_iad2
+++ b/inventory/group_vars/download_iad2
@@ -4,7 +4,7 @@ datacenter: iad2
 dns: 10.3.163.33
 host_group: download-iad2
 # nfs mount options, overrides the all/default
-nfs_mount_opts: "ro,hard,bg,intr,noatime,nodev,nosuid,actimeo=600,nfsvers=3"
+nfs_mount_opts: "ro,hard,bg,intr,noatime,nodev,nosuid,actimeo=600,nfsvers=4"
 nrpe_procs_crit: 1000
 nrpe_procs_warn: 900
 rsyncd_conf: "rsyncd.conf.download-{{ datacenter }}"