diff --git a/tests/integration/test_actor_lifecycle.py b/tests/integration/test_actor_lifecycle.py
index 649dc1d1..eda6a1cb 100644
--- a/tests/integration/test_actor_lifecycle.py
+++ b/tests/integration/test_actor_lifecycle.py
@@ -2,6 +2,8 @@
 
 from typing import TYPE_CHECKING
 
+import pytest
+
 from apify import Actor
 
 if TYPE_CHECKING:
@@ -119,6 +121,7 @@ async def main() -> None:
     assert run_result.status == 'FAILED'
 
 
+@pytest.mark.skip(reason='Skipped due to known instability, see issue #650.')
 async def test_actor_with_crawler_reboot(make_actor: MakeActorFunction, run_actor: RunActorFunction) -> None:
     """Test that crawler in actor works as expected after reboot.
 
diff --git a/tests/integration/test_actor_log.py b/tests/integration/test_actor_log.py
index c3596841..bd9ab77d 100644
--- a/tests/integration/test_actor_log.py
+++ b/tests/integration/test_actor_log.py
@@ -12,7 +12,7 @@
 
 # TODO: What to do with the `browserforge` output?
 # https://github.com/apify/apify-sdk-python/issues/423
-@pytest.mark.skip
+@pytest.mark.skip(reason='Skipped due to known instability, see issue #423.')
 async def test_actor_logging(
     make_actor: MakeActorFunction,
     run_actor: RunActorFunction,