diff --git a/main.py b/main.py
index 8af0944..55c23af 100644
--- a/main.py
+++ b/main.py
@@ -53,7 +53,7 @@ def main():
 
 def format_temp(data: dict) -> str:
     name = data["attributes"]["friendly_name"].lower().replace("temperature", "").strip()
-    diff = pendulum.parse(data["last_updated"]).diff_for_humans(locale="fr")
+    diff = pendulum.parse(data["attributes"]["last_successful_update"]).diff_for_humans(locale="fr")
     return f"{name} : {data['state']}{data['attributes']['unit_of_measurement']} ({diff})"