diff --git a/homeassistant/components/google/manifest.json b/homeassistant/components/google/manifest.json
index 724a2033c3bab1..3a3242898ce4bf 100644
--- a/homeassistant/components/google/manifest.json
+++ b/homeassistant/components/google/manifest.json
@@ -8,5 +8,5 @@
   "integration_type": "service",
   "iot_class": "cloud_polling",
   "loggers": ["googleapiclient"],
-  "requirements": ["gcal-sync==9.1.0", "oauth2client==4.1.3", "ical==13.3.0"]
+  "requirements": ["gcal-sync==9.1.0", "oauth2client==4.1.3", "ical==14.0.1"]
 }
diff --git a/homeassistant/components/local_calendar/manifest.json b/homeassistant/components/local_calendar/manifest.json
index 1cae20632f8c96..dbb058974a86ef 100644
--- a/homeassistant/components/local_calendar/manifest.json
+++ b/homeassistant/components/local_calendar/manifest.json
@@ -7,5 +7,5 @@
   "documentation": "https://www.home-assistant.io/integrations/local_calendar",
   "iot_class": "local_polling",
   "loggers": ["ical"],
-  "requirements": ["ical==13.3.0"]
+  "requirements": ["ical==14.0.1"]
 }
diff --git a/homeassistant/components/local_todo/manifest.json b/homeassistant/components/local_todo/manifest.json
index 0fe844c12b9d11..59bbc47444f632 100644
--- a/homeassistant/components/local_todo/manifest.json
+++ b/homeassistant/components/local_todo/manifest.json
@@ -5,5 +5,5 @@
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/local_todo",
   "iot_class": "local_polling",
-  "requirements": ["ical==13.3.0"]
+  "requirements": ["ical==14.0.1"]
 }
diff --git a/homeassistant/components/remote_calendar/manifest.json b/homeassistant/components/remote_calendar/manifest.json
index 8a90cf7f904ba1..3feafc86e6f6df 100644
--- a/homeassistant/components/remote_calendar/manifest.json
+++ b/homeassistant/components/remote_calendar/manifest.json
@@ -8,5 +8,5 @@
   "iot_class": "cloud_polling",
   "loggers": ["ical"],
   "quality_scale": "silver",
-  "requirements": ["ical==13.3.0"]
+  "requirements": ["ical==14.0.1"]
 }
diff --git a/homeassistant/components/unifi/sensor.py b/homeassistant/components/unifi/sensor.py
index cc8e0fc234e5ed..c9cd0f796905f5 100644
--- a/homeassistant/components/unifi/sensor.py
+++ b/homeassistant/components/unifi/sensor.py
@@ -259,7 +259,7 @@ def _device_wan_latency_monitor(
 ) -> TypedDeviceUptimeStatsWanMonitor | None:
     """Return the target of the WAN latency monitor."""
     if device.uptime_stats and (uptime_stats_wan := device.uptime_stats.get(wan)):
-        for monitor in uptime_stats_wan["monitors"]:
+        for monitor in uptime_stats_wan.get("monitors", []):
             if monitor_target in monitor["target"]:
                 return monitor
     return None
diff --git a/requirements_all.txt b/requirements_all.txt
index 76609c5364aed3..6904551eac9d87 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1329,7 +1329,7 @@ ibeacon-ble==1.2.0
 # homeassistant.components.local_calendar
 # homeassistant.components.local_todo
 # homeassistant.components.remote_calendar
-ical==13.3.0
+ical==14.0.1
 
 # homeassistant.components.caldav
 icalendar==6.3.1
diff --git a/tests/components/unifi/test_sensor.py b/tests/components/unifi/test_sensor.py
index 85eef64c8da072..a56b20ddb45448 100644
--- a/tests/components/unifi/test_sensor.py
+++ b/tests/components/unifi/test_sensor.py
@@ -1718,6 +1718,47 @@ async def test_wan_monitor_latency_with_no_uptime(
     assert latency_entry is None
 
 
+@pytest.mark.parametrize(
+    "device_payload",
+    [
+        [
+            {
+                "board_rev": 2,
+                "device_id": "mock-id",
+                "ip": "10.0.1.1",
+                "mac": "10:00:00:00:01:01",
+                "last_seen": 1562600145,
+                "model": "US16P150",
+                "name": "mock-name",
+                "port_overrides": [],
+                # A cellular/5G WAN reports uptime stats without a "monitors" key.
+                "uptime_stats": {
+                    "WAN": {
+                        "availability": 100.0,
+                        "latency_average": 39,
+                    },
+                },
+                "state": 1,
+                "type": "usw",
+                "version": "4.0.42.10433",
+            }
+        ]
+    ],
+)
+@pytest.mark.usefixtures("config_entry_setup")
+async def test_wan_monitor_latency_without_monitors_key(
+    hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
+) -> None:
+    """Verify setup succeeds when a WAN's uptime stats omit the 'monitors' key."""
+
+    assert len(hass.states.async_all()) == 6
+    assert len(hass.states.async_entity_ids(SENSOR_DOMAIN)) == 2
+
+    latency_entry = entity_registry.async_get("sensor.mock_name_google_wan_latency")
+    assert latency_entry is None
+
+
 @pytest.mark.parametrize(
     "device_payload",
     [