diff --git a/app/main.py b/app/main.py
index 46617db..df11f87 100644
--- a/app/main.py
+++ b/app/main.py
@@ -595,6 +595,11 @@ def settings_save(
         "(défini)" if ntfy_token.strip() else "(vide)",
     )
     save_notif_config(user_id, ntfy_topic, ntfy_server, rappel_debut_h, rappel_fin_h, ntfy_token)
+    append_log(
+        user_id, "settings", "Réglages ntfy",
+        f"topic={ntfy_topic or '(vide)'} server={ntfy_server} plage={rappel_debut_h}h-{rappel_fin_h}h "
+        f"jeton={'défini' if ntfy_token.strip() else '(vide)'}",
+    )
     return RedirectResponse("/settings?saved=1", status_code=303)
 
 
@@ -639,6 +644,7 @@ def settings_regenerate_presence_token(request: Request):
 
     new_token = regenerate_presence_token(user_id)
     logger.warning("token de présence régénéré pour %r", user_id)
+    append_log(user_id, "settings", "Token présence régénéré", "Les URLs Tasker ont été invalidées et remplacées.")
 
     base_url = str(request.base_url).rstrip("/")
     arrivee_url = f"{base_url}/presence/{new_token}/arrivee"
@@ -691,6 +697,13 @@ def settings_plages_save(
 
     logger.info("réglages plages mis à jour: user_id=%r plages=%r", user_id, fields)
     save_plages(user_id, fields)
+    append_log(
+        user_id, "settings", "Plages horaires",
+        f"matin {fields['matin_debut']}→{fields['matin_fin']}, "
+        f"aprem {fields['aprem_debut']}→{fields['aprem_fin']}, "
+        f"reprise {fields['pause_dejeuner_fin']}"
+        + (f", visées {fields['arrivee_visee']}→{fields['depart_vise']}" if fields['arrivee_visee'] or fields['depart_vise'] else ""),
+    )
     return RedirectResponse("/settings?plages_saved=1", status_code=303)
 
 
diff --git a/app/models.py b/app/models.py
index dd9286c..983471e 100644
--- a/app/models.py
+++ b/app/models.py
@@ -272,7 +272,7 @@ def toggle_conge(date: str, type_conge: str, user_id: str = ""):
 
 # ── Journaux (notifications + présence) ───────────────────────────────────────
 
-LOG_TYPES = ("notif", "presence")
+LOG_TYPES = ("notif", "presence", "settings")
 MAX_LOGS = 500
 
 
diff --git a/app/templates/logs.html b/app/templates/logs.html
index 1e68289..303ed6e 100644
--- a/app/templates/logs.html
+++ b/app/templates/logs.html
@@ -10,7 +10,7 @@
 </div>
 
 <div class="logs-tabs" role="tablist">
-  {% set counts = {'all': logs|length, 'notif': logs | selectattr('type', 'equalto', 'notif') | list | length, 'presence': logs | selectattr('type', 'equalto', 'presence') | list | length} %}
+  {% set counts = {'all': logs|length, 'notif': logs | selectattr('type', 'equalto', 'notif') | list | length, 'presence': logs | selectattr('type', 'equalto', 'presence') | list | length, 'settings': logs | selectattr('type', 'equalto', 'settings') | list | length} %}
   <a class="ltab{% if filter == 'all' %} active{% endif %}" href="/logs" role="tab">
     Tout <span class="ltab-count">{{ counts.all }}</span>
   </a>
@@ -20,6 +20,9 @@
   <a class="ltab{% if filter == 'presence' %} active{% endif %}" href="/logs?filter=presence" role="tab">
     Présence <span class="ltab-count">{{ counts.presence }}</span>
   </a>
+  <a class="ltab{% if filter == 'settings' %} active{% endif %}" href="/logs?filter=settings" role="tab">
+    Réglages <span class="ltab-count">{{ counts.settings }}</span>
+  </a>
 </div>
 
 {% set visible = logs if filter == 'all' else logs | selectattr('type', 'equalto', filter) | list %}
@@ -29,7 +32,7 @@
   {% for entry in visible %}
   <div class="log-row log-{{ entry.type }}{% if entry.event == 'échec' %} log-failed{% endif %}">
     <div class="log-ts">{{ entry.ts }}</div>
-    <div class="log-type">{{ 'Notification' if entry.type == 'notif' else 'Présence' }}</div>
+    <div class="log-type">{{ {'notif': 'Notification', 'presence': 'Présence', 'settings': 'Réglages'}[entry.type] }}</div>
     <div class="log-body">
       <span class="log-event">{{ entry.event }}</span>
       {% if entry.message %}<span class="log-msg">{{ entry.message }}</span>{% endif %}
@@ -105,6 +108,7 @@
 }
 .log-notif .log-type { color: var(--accent); }
 .log-presence .log-type { color: var(--accent-2); }
+.log-settings .log-type { color: var(--conge-txt); }
 .log-body { display: flex; flex-direction: column; gap: .15rem; }
 .log-event {
   font-weight: 500;
diff --git a/app/tests/test_logs.py b/app/tests/test_logs.py
index 37482d7..e065035 100644
--- a/app/tests/test_logs.py
+++ b/app/tests/test_logs.py
@@ -299,3 +299,50 @@ def test_regenerate_preserves_other_notif_fields():
     assert after["ntfy_topic"] == "topic-x"
     assert after["ntfy_server"] == "https://ntfy.arkel.fr"
     assert after["ntfy_token"] == "tk_xyz"
+
+
+# ── Changements de paramètres tracés dans le journal ─────────────────────────
+
+def test_settings_save_logged():
+    """Sauvegarder les réglages ntfy doit écrire une entrée de journal."""
+    models.save_notif_config("alice", ntfy_topic="t", ntfy_server="https://ntfy.sh")
+    before = len([l for l in models.load_logs("alice") if l["type"] == "settings"])
+    client.post("/settings", cookies=COOKIES, data={
+        "ntfy_topic": "topic-new",
+        "ntfy_server": "https://ntfy.arkel.fr",
+        "ntfy_token": "tk_abc",
+        "rappel_debut_h": "8",
+        "rappel_fin_h": "19",
+    })
+    after = [l for l in models.load_logs("alice") if l["type"] == "settings"]
+    assert len(after) == before + 1
+    latest = after[0]
+    assert latest["event"] == "Réglages ntfy"
+    assert "topic-new" in latest["message"]
+    assert "ntfy.arkel.fr" in latest["message"]
+
+
+def test_settings_plages_save_logged():
+    """Sauvegarder les plages horaires doit écrire une entrée de journal."""
+    before = len([l for l in models.load_logs("alice") if l["type"] == "settings"])
+    client.post("/settings/plages", cookies=COOKIES, data={
+        "matin_debut": "09:00", "matin_fin": "12:00",
+        "aprem_debut": "14:00", "aprem_fin": "17:00",
+        "pause_dejeuner_fin": "13:30",
+        "arrivee_visee": "", "depart_vise": "",
+    })
+    after = [l for l in models.load_logs("alice") if l["type"] == "settings"]
+    assert len(after) == before + 1
+    latest = after[0]
+    assert latest["event"] == "Plages horaires"
+    assert "09:00" in latest["message"]
+
+
+def test_regenerate_presence_token_logged():
+    """Régénérer le token de présence doit écrire une entrée de journal."""
+    before = len([l for l in models.load_logs("alice") if l["type"] == "settings"])
+    client.post("/settings/regenerate-presence-token", cookies=COOKIES)
+    after = [l for l in models.load_logs("alice") if l["type"] == "settings"]
+    assert len(after) == before + 1
+    latest = after[0]
+    assert "régénéré" in latest["event"].lower()