diff --git a/zerver/webhooks/uptimerobot/view.py b/zerver/webhooks/uptimerobot/view.py
index 7889d96c5c..6053832fc5 100644
--- a/zerver/webhooks/uptimerobot/view.py
+++ b/zerver/webhooks/uptimerobot/view.py
@@ -1,5 +1,4 @@
-from typing import Any, Dict
-
+from django.core.exceptions import ValidationError
 from django.http import HttpRequest, HttpResponse
 from django.utils.translation import gettext as _
 
@@ -9,6 +8,7 @@ from zerver.lib.exceptions import JsonableError
 from zerver.lib.request import REQ, has_request_variables
 from zerver.lib.response import json_success
 from zerver.lib.send_email import FromAddress
+from zerver.lib.validator import WildValue, check_string, to_wild_value
 from zerver.lib.webhooks.common import check_send_webhook_message
 from zerver.models import UserProfile
 
@@ -36,17 +36,18 @@ ALL_EVENT_TYPES = ["up", "down"]
 def api_uptimerobot_webhook(
     request: HttpRequest,
     user_profile: UserProfile,
-    payload: Dict[str, Any] = REQ(argument_type="body"),
+    payload: WildValue = REQ(argument_type="body", converter=to_wild_value),
 ) -> HttpResponse:
-    if payload["alert_type_friendly_name"] == "Up":
+    event_type = payload["alert_type_friendly_name"].tame(check_string)
+    if event_type == "Up":
         event = "up"
-    elif payload["alert_type_friendly_name"] == "Down":
+    elif event_type == "Down":
         event = "down"
 
     try:
-        body = get_body_for_http_request(payload)
+        body = get_body_for_http_request(payload, event_type)
         subject = get_subject_for_http_request(payload)
-    except KeyError:
+    except ValidationError:
         message = MISCONFIGURED_PAYLOAD_ERROR_MESSAGE.format(
             bot_name=user_profile.full_name,
             support_email=FromAddress.SUPPORT,
@@ -59,14 +60,32 @@ def api_uptimerobot_webhook(
     return json_success(request)
 
 
-def get_subject_for_http_request(payload: Dict[str, Any]) -> str:
-    return UPTIMEROBOT_TOPIC_TEMPLATE.format(monitor_friendly_name=payload["monitor_friendly_name"])
+def get_subject_for_http_request(payload: WildValue) -> str:
+    return UPTIMEROBOT_TOPIC_TEMPLATE.format(
+        monitor_friendly_name=payload["monitor_friendly_name"].tame(check_string)
+    )
 
 
-def get_body_for_http_request(payload: Dict[str, Any]) -> str:
-    if payload["alert_type_friendly_name"] == "Up":
-        body = UPTIMEROBOT_MESSAGE_UP_TEMPLATE.format(**payload)
-    elif payload["alert_type_friendly_name"] == "Down":
-        body = UPTIMEROBOT_MESSAGE_DOWN_TEMPLATE.format(**payload)
+def get_body_for_http_request(payload: WildValue, event_type: str) -> str:
+    if event_type == "Up":
+        monitor_friendly_name = payload["monitor_friendly_name"].tame(check_string)
+        monitor_url = payload["monitor_url"].tame(check_string)
+        alert_details = payload["alert_details"].tame(check_string)
+        alert_friendly_duration = payload["alert_friendly_duration"].tame(check_string)
+        body = UPTIMEROBOT_MESSAGE_UP_TEMPLATE.format(
+            monitor_friendly_name=monitor_friendly_name,
+            monitor_url=monitor_url,
+            alert_details=alert_details,
+            alert_friendly_duration=alert_friendly_duration,
+        )
+    elif event_type == "Down":
+        monitor_friendly_name = payload["monitor_friendly_name"].tame(check_string)
+        monitor_url = payload["monitor_url"].tame(check_string)
+        alert_details = payload["alert_details"].tame(check_string)
+        body = UPTIMEROBOT_MESSAGE_DOWN_TEMPLATE.format(
+            monitor_friendly_name=monitor_friendly_name,
+            monitor_url=monitor_url,
+            alert_details=alert_details,
+        )
 
     return body