diff --git a/src/sentry/api/urls.py b/src/sentry/api/urls.py
index 696308ba7eed56..bff1647c848e58 100644
--- a/src/sentry/api/urls.py
+++ b/src/sentry/api/urls.py
@@ -1342,6 +1342,7 @@
         r"^(?P<organization_slug>[^\/]+)/monitors/(?P<monitor_id>[^\/]+)/checkins/(?P<checkin_id>[^\/]+)/$",
         method_dispatch(
             PUT=MonitorIngestCheckInDetailsEndpoint.as_view(),  # Legacy ingest endpoint
+            csrf_exempt=True,
         ),
         name="sentry-api-0-organization-monitor-check-in-details",
     ),