diff --git a/machines/web01/metis/default.nix b/machines/web01/metis/default.nix
index a84fc31..1517bb9 100644
--- a/machines/web01/metis/default.nix
+++ b/machines/web01/metis/default.nix
@@ -1,13 +1,10 @@
 { lib, pkgs, sources, ... }:
 
 let
-  package = (import sources.metis { inherit pkgs; }).production;
+  metis = import sources.metis { inherit pkgs; };
+  package = metis.production;
+  inherit (metis) providers;
 
-  providers = {
-    klub-reseau = "nuage.beta.rz.ens.wtf";
-    eleves-ens = "cloud.eleves.ens.fr";
-    frama-agenda = "framagenda.org";
-  };
 
 
 in {
@@ -19,16 +16,14 @@ in {
     forceSSL = true;
     root = package;
 
-    locations = lib.mapAttrs' (name: attrs:
+    locations = lib.mapAttrs' (name: value:
       lib.nameValuePair "/cal/${name}/" {
         extraConfig = ''
           proxy_set_header X-Forwarded-Host $host;
           proxy_set_header X-Forwarded-Server $host;
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-          proxy_pass https://${
-            providers.${name}
-          }/remote.php/dav/public-calendars/;
-        '';
+          proxy_pass ${value};
+          '';
       }) providers;
 
     extraConfig = ''
diff --git a/npins/sources.json b/npins/sources.json
index b5eef32..0e866b7 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -72,9 +72,9 @@
         "url": "https://git.dgnum.eu/DGNum/metis"
       },
       "branch": "master",
-      "revision": "b5b9941560171832b96669a6566c758c0c1a1993",
+      "revision": "1a151d6cf48acf9eef18f4600ebb6cce2f3b4786",
       "url": null,
-      "hash": "0zbdqlanp799saph4x91xwvwxb53d9nj42d6nlydgajnk6gmvc35"
+      "hash": "1anq6848vy4is8pgq5rkcmpa6kiv31lpbiw6kk030r2qn6amnqhw"
     },
     "nix-lib": {
       "type": "GitRelease",