diff --git a/grid5000-all.json b/grid5000-all.json
index f1ebc41730c0801832840d194fbc27c6e6c8e199..d43a44441ae1bf8dc64378f2a6f5ac4f57991d1e 100644
--- a/grid5000-all.json
+++ b/grid5000-all.json
@@ -156068,25 +156068,15 @@
         "topo": "1501..1601"
       },
       "laptops": {
-        "cacahuete": {
-          "network_adapters": {
-            "eth0": {
-              "ip": "172.16.79.18",
-              "mac": "EC:B1:D7:99:11:68",
-              "mounted": true
-            }
-          },
-          "user": "cparisot"
-        },
-        "grosminet": {
+        "brouette": {
           "network_adapters": {
             "eth0": {
               "ip": "172.16.79.6",
-              "mac": "D4:BE:D9:73:E2:D4",
+              "mac": "ec:b1:d7:93:46:a2",
               "mounted": true
             }
           },
-          "user": "agarnier"
+          "user": "fdidier"
         }
       },
       "latitude": 48.7,
diff --git a/input/grid5000/sites/nancy/nancy.yaml b/input/grid5000/sites/nancy/nancy.yaml
index 2e7c25887ff3b78bf1f0dcf2bb25197e6ee921ac..d501b9e4e79d0bc91b9163af8cc0ed9ae3a28dfe 100644
--- a/input/grid5000/sites/nancy/nancy.yaml
+++ b/input/grid5000/sites/nancy/nancy.yaml
@@ -19,20 +19,13 @@ frontend_ip: 172.16.79.101
 
 # Admin laptops
 laptops:
-  grosminet:
-    user: agarnier
+  brouette:
+    user: fdidier
     network_adapters:
       eth0:
         mounted: true
         ip: 172.16.79.6
-        mac: D4:BE:D9:73:E2:D4
-  cacahuete:
-    user: cparisot
-    network_adapters:
-      eth0:
-        mounted: true
-        ip: 172.16.79.18
-        mac: EC:B1:D7:99:11:68
+        mac: ec:b1:d7:93:46:a2
 
 g5ksubnet:
   network: 10.144.0.0/14