diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7e644d3bb..46bf14183 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.9.1] - Unreleased
+### Fixed
+- Allow receiving `trigger_name` key in trigger payload, which is sent by Astarte >= 1.2.0.
+
 ## [0.9.0] - 2024-10-25
 ### Fixed
 - Correctly support automatic login attempts on the frontend regardless of existing auth sessions ([#596](https://github.com/edgehog-device-manager/edgehog/pull/596)).
diff --git a/backend/lib/edgehog/triggers/trigger_payload.ex b/backend/lib/edgehog/triggers/trigger_payload.ex
index 76c485a3b..58df57386 100644
--- a/backend/lib/edgehog/triggers/trigger_payload.ex
+++ b/backend/lib/edgehog/triggers/trigger_payload.ex
@@ -41,5 +41,10 @@ defmodule Edgehog.Triggers.TriggerPayload do
       public? true
       allow_nil? false
     end
+
+    # This is sent in Astarte >= 1.2.0, so it can be nil
+    attribute :trigger_name, :string do
+      public? true
+    end
   end
 end
diff --git a/backend/test/edgehog_web/controllers/astarte_trigger_controller_test.exs b/backend/test/edgehog_web/controllers/astarte_trigger_controller_test.exs
index 4d8352fe8..5e7cac0bd 100644
--- a/backend/test/edgehog_web/controllers/astarte_trigger_controller_test.exs
+++ b/backend/test/edgehog_web/controllers/astarte_trigger_controller_test.exs
@@ -168,6 +168,33 @@ defmodule EdgehogWeb.Controllers.AstarteTriggerControllerTest do
              } = device
     end
 
+    test "accepts trigger payload without `trigger_name` key (Astarte < 1.2.0)", ctx do
+      %{
+        conn: conn,
+        path: path,
+        realm: realm,
+        tenant: tenant
+      } = ctx
+
+      %Device{device_id: device_id} =
+        device_fixture(
+          tenant: tenant,
+          realm_id: realm.id,
+          online: false,
+          last_connection: DateTime.add(utc_now_second(), -50, :minute),
+          last_disconnection: DateTime.add(utc_now_second(), -10, :minute)
+        )
+
+      timestamp = utc_now_second()
+
+      astarte_pre_1_2_0_event =
+        device_id
+        |> connection_trigger(timestamp)
+        |> Map.delete(:trigger_name)
+
+      assert conn |> post(path, astarte_pre_1_2_0_event) |> response(200)
+    end
+
     test "disconnection events update an existing device, not calling Astarte", ctx do
       %{
         conn: conn,
@@ -395,6 +422,7 @@ defmodule EdgehogWeb.Controllers.AstarteTriggerControllerTest do
       path = Routes.astarte_trigger_path(conn, :process_event, tenant.slug)
 
       ota_event = %{
+        trigger_name: "edgehog-ota-event",
         device_id: device.device_id,
         event: %{
           type: "incoming_data",
@@ -479,6 +507,7 @@ defmodule EdgehogWeb.Controllers.AstarteTriggerControllerTest do
       path = Routes.astarte_trigger_path(conn, :process_event, tenant.slug)
 
       ota_event = %{
+        trigger_name: "edgehog-ota-event",
         device_id: device.device_id,
         event: %{
           type: "incoming_data",
@@ -516,6 +545,7 @@ defmodule EdgehogWeb.Controllers.AstarteTriggerControllerTest do
 
   defp connection_trigger(device_id, timestamp) do
     %{
+      trigger_name: "edgehog-connection",
       device_id: device_id,
       event: %{
         type: "device_connected",
@@ -527,6 +557,7 @@ defmodule EdgehogWeb.Controllers.AstarteTriggerControllerTest do
 
   defp disconnection_trigger(device_id, timestamp) do
     %{
+      trigger_name: "edgehog-disconnection",
       device_id: device_id,
       event: %{
         type: "device_disconnected"
@@ -539,6 +570,7 @@ defmodule EdgehogWeb.Controllers.AstarteTriggerControllerTest do
 
   defp part_number_trigger(device_id, part_number) do
     %{
+      trigger_name: "edgehog-system-info",
       device_id: device_id,
       event: %{
         type: "incoming_data",
@@ -552,6 +584,7 @@ defmodule EdgehogWeb.Controllers.AstarteTriggerControllerTest do
 
   defp serial_number_trigger(device_id, serial_number) do
     %{
+      trigger_name: "edgehog-system-info",
       device_id: device_id,
       event: %{
         type: "incoming_data",
@@ -565,6 +598,7 @@ defmodule EdgehogWeb.Controllers.AstarteTriggerControllerTest do
 
   defp unknown_trigger(device_id) do
     %{
+      trigger_name: "other-trigger",
       device_id: device_id,
       event: %{
         type: "incoming_data",