diff --git a/inventory/group_vars/releng_compose b/inventory/group_vars/releng_compose
index 7b061385ba..be5c4d5caf 100644
--- a/inventory/group_vars/releng_compose
+++ b/inventory/group_vars/releng_compose
@@ -46,7 +46,7 @@ kojipkgs_url: kojipkgs.fedoraproject.org
 lvm_size: 100000
 max_mem_size: "{{ mem_size }}"
 mem_size: 131072
-nfs_mount_opts: "rw,hard,bg,intr,noatime,nodev,nosuid,sec=sys,nfsvers=3"
+nfs_mount_opts: "rw,hard,bg,intr,noatime,nodev,nosuid,sec=sys,nfsvers=4"
 nrpe_procs_crit: 1000
 # With 16 cpus, theres a bunch more kernel threads
 nrpe_procs_warn: 900