diff --git a/data/grid5000/sites/nancy/network_equipments/sgrcinq.json b/data/grid5000/sites/nancy/network_equipments/sgrcinq.json
index 031a36f6f3e855c438aebe9d2175b954c027a541..84e0a49c25838555e43047fe2e6864ede5fa6bc1 100644
--- a/data/grid5000/sites/nancy/network_equipments/sgrcinq.json
+++ b/data/grid5000/sites/nancy/network_equipments/sgrcinq.json
@@ -293,7 +293,7 @@
       "administrative": true
     }
   },
-  "warranty": "2021-08-01",
+  "warranty": "2028-11-28",
   "weathermap": {
   }
 }
\ No newline at end of file
diff --git a/input/grid5000/sites/nancy/networks/sgrcinq.yaml b/input/grid5000/sites/nancy/networks/sgrcinq.yaml
index a5030a3ff2bc1b1d38308ac52849919f25f215ce..c226289e0ee0b317f8b5dd0409e81c2ef92da745 100644
--- a/input/grid5000/sites/nancy/networks/sgrcinq.yaml
+++ b/input/grid5000/sites/nancy/networks/sgrcinq.yaml
@@ -1,7 +1,7 @@
 ---
 sgrcinq:
   model: Cisco WS-C2960X-48TD-L
-  warranty: "2021-08-01"
+  warranty: "2028-11-28" # see bug 9837
   kind: switch
   site: nancy
   snmp_community: public