diff --git a/roles/download/defaults/main.yml b/roles/download/defaults/main.yml
index 900c46b30..cd56a5bfd 100644
--- a/roles/download/defaults/main.yml
+++ b/roles/download/defaults/main.yml
@@ -80,7 +80,7 @@ flannel_version: "v0.12.0"
 cni_version: "v0.8.5"
 
 weave_version: 2.6.2
-pod_infra_version: 3.1
+pod_infra_version: "3.1"
 contiv_version: 1.2.1
 cilium_version: "v1.7.3"
 kube_ovn_version: "v1.1.1"