diff --git a/api.md b/api.md
index 3d64fc75b2f..d8ad15a99ce 100644
--- a/api.md
+++ b/api.md
@@ -292,7 +292,7 @@ from cloudflare.types.zones import ActivationCheckTriggerResponse
 
 Methods:
 
-- <code title="put /zones/{zone_id}/activation_check">client.zones.activation_check.<a href="./src/cloudflare/resources/zones/activation_check.py">trigger</a>(\*, zone_id) -> <a href="./src/cloudflare/types/zones/activation_check_trigger_response.py">ActivationCheckTriggerResponse</a></code>
+- <code title="put /zones/{zone_id}/activation_check">client.zones.activation_check.<a href="./src/cloudflare/resources/zones/activation_check.py">trigger</a>(\*, zone_id) -> <a href="./src/cloudflare/types/zones/activation_check_trigger_response.py">Optional</a></code>
 
 ## DNSSettings
 
diff --git a/src/cloudflare/resources/zones/activation_check.py b/src/cloudflare/resources/zones/activation_check.py
index 7dfdc7ef4b4..473145a2821 100644
--- a/src/cloudflare/resources/zones/activation_check.py
+++ b/src/cloudflare/resources/zones/activation_check.py
@@ -2,7 +2,7 @@
 
 from __future__ import annotations
 
-from typing import Type, cast
+from typing import Type, Optional, cast
 
 import httpx
 
@@ -43,7 +43,7 @@ def trigger(
         extra_query: Query | None = None,
         extra_body: Body | None = None,
         timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
-    ) -> ActivationCheckTriggerResponse:
+    ) -> Optional[ActivationCheckTriggerResponse]:
         """Triggeres a new activation check for a PENDING Zone.
 
         This can be triggered every
@@ -69,9 +69,9 @@ def trigger(
                 extra_query=extra_query,
                 extra_body=extra_body,
                 timeout=timeout,
-                post_parser=ResultWrapper[ActivationCheckTriggerResponse]._unwrapper,
+                post_parser=ResultWrapper[Optional[ActivationCheckTriggerResponse]]._unwrapper,
             ),
-            cast_to=cast(Type[ActivationCheckTriggerResponse], ResultWrapper[ActivationCheckTriggerResponse]),
+            cast_to=cast(Type[Optional[ActivationCheckTriggerResponse]], ResultWrapper[ActivationCheckTriggerResponse]),
         )
 
 
@@ -94,7 +94,7 @@ async def trigger(
         extra_query: Query | None = None,
         extra_body: Body | None = None,
         timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
-    ) -> ActivationCheckTriggerResponse:
+    ) -> Optional[ActivationCheckTriggerResponse]:
         """Triggeres a new activation check for a PENDING Zone.
 
         This can be triggered every
@@ -120,9 +120,9 @@ async def trigger(
                 extra_query=extra_query,
                 extra_body=extra_body,
                 timeout=timeout,
-                post_parser=ResultWrapper[ActivationCheckTriggerResponse]._unwrapper,
+                post_parser=ResultWrapper[Optional[ActivationCheckTriggerResponse]]._unwrapper,
             ),
-            cast_to=cast(Type[ActivationCheckTriggerResponse], ResultWrapper[ActivationCheckTriggerResponse]),
+            cast_to=cast(Type[Optional[ActivationCheckTriggerResponse]], ResultWrapper[ActivationCheckTriggerResponse]),
         )
 
 
diff --git a/tests/api_resources/zones/test_activation_check.py b/tests/api_resources/zones/test_activation_check.py
index 56199bb58be..67f56ba83eb 100644
--- a/tests/api_resources/zones/test_activation_check.py
+++ b/tests/api_resources/zones/test_activation_check.py
@@ -3,7 +3,7 @@
 from __future__ import annotations
 
 import os
-from typing import Any, cast
+from typing import Any, Optional, cast
 
 import pytest
 
@@ -23,7 +23,7 @@ def test_method_trigger(self, client: Cloudflare) -> None:
         activation_check = client.zones.activation_check.trigger(
             zone_id="023e105f4ecef8ad9ca31a8372d0c353",
         )
-        assert_matches_type(ActivationCheckTriggerResponse, activation_check, path=["response"])
+        assert_matches_type(Optional[ActivationCheckTriggerResponse], activation_check, path=["response"])
 
     @pytest.mark.skip()
     @parametrize
@@ -35,7 +35,7 @@ def test_raw_response_trigger(self, client: Cloudflare) -> None:
         assert response.is_closed is True
         assert response.http_request.headers.get("X-Stainless-Lang") == "python"
         activation_check = response.parse()
-        assert_matches_type(ActivationCheckTriggerResponse, activation_check, path=["response"])
+        assert_matches_type(Optional[ActivationCheckTriggerResponse], activation_check, path=["response"])
 
     @pytest.mark.skip()
     @parametrize
@@ -47,7 +47,7 @@ def test_streaming_response_trigger(self, client: Cloudflare) -> None:
             assert response.http_request.headers.get("X-Stainless-Lang") == "python"
 
             activation_check = response.parse()
-            assert_matches_type(ActivationCheckTriggerResponse, activation_check, path=["response"])
+            assert_matches_type(Optional[ActivationCheckTriggerResponse], activation_check, path=["response"])
 
         assert cast(Any, response.is_closed) is True
 
@@ -69,7 +69,7 @@ async def test_method_trigger(self, async_client: AsyncCloudflare) -> None:
         activation_check = await async_client.zones.activation_check.trigger(
             zone_id="023e105f4ecef8ad9ca31a8372d0c353",
         )
-        assert_matches_type(ActivationCheckTriggerResponse, activation_check, path=["response"])
+        assert_matches_type(Optional[ActivationCheckTriggerResponse], activation_check, path=["response"])
 
     @pytest.mark.skip()
     @parametrize
@@ -81,7 +81,7 @@ async def test_raw_response_trigger(self, async_client: AsyncCloudflare) -> None
         assert response.is_closed is True
         assert response.http_request.headers.get("X-Stainless-Lang") == "python"
         activation_check = await response.parse()
-        assert_matches_type(ActivationCheckTriggerResponse, activation_check, path=["response"])
+        assert_matches_type(Optional[ActivationCheckTriggerResponse], activation_check, path=["response"])
 
     @pytest.mark.skip()
     @parametrize
@@ -93,7 +93,7 @@ async def test_streaming_response_trigger(self, async_client: AsyncCloudflare) -
             assert response.http_request.headers.get("X-Stainless-Lang") == "python"
 
             activation_check = await response.parse()
-            assert_matches_type(ActivationCheckTriggerResponse, activation_check, path=["response"])
+            assert_matches_type(Optional[ActivationCheckTriggerResponse], activation_check, path=["response"])
 
         assert cast(Any, response.is_closed) is True