diff --git a/hosts/vps1/kanidm.nix b/hosts/vps1/kanidm.nix
index 0ae5c0e..af6128e 100644
--- a/hosts/vps1/kanidm.nix
+++ b/hosts/vps1/kanidm.nix
@@ -26,6 +26,7 @@ in
         origin = uri;
         tls_chain = "${config.security.acme.certs.${domain}.directory}/full.pem";
         tls_key = "${config.security.acme.certs.${domain}.directory}/key.pem";
+        version = "2";
       };
     };