diff --git a/test/time_controller/time_controller_conformance_test.cc b/test/time_controller/time_controller_conformance_test.cc
index 10f0e1d..3d582ca 100644
--- a/test/time_controller/time_controller_conformance_test.cc
+++ b/test/time_controller/time_controller_conformance_test.cc
@@ -92,6 +92,9 @@
   thread->PostTask(RTC_FROM_HERE, [&]() { execution_order.Executed(2); });
   time_controller->AdvanceTime(TimeDelta::Millis(100));
   EXPECT_THAT(execution_order.order(), ElementsAreArray({1, 2}));
+  // Destroy `thread` before `execution_order` to be sure `execution_order`
+  // is not accessed on the posted task after it is destroyed.
+  thread = nullptr;
 }
 
 TEST_P(SimulatedRealTimeControllerConformanceTest, ThreadPostDelayedOrderTest) {
@@ -105,6 +108,9 @@
   thread->PostTask(ToQueuedTask([&]() { execution_order.Executed(1); }));
   time_controller->AdvanceTime(TimeDelta::Millis(600));
   EXPECT_THAT(execution_order.order(), ElementsAreArray({1, 2}));
+  // Destroy `thread` before `execution_order` to be sure `execution_order`
+  // is not accessed on the posted task after it is destroyed.
+  thread = nullptr;
 }
 
 TEST_P(SimulatedRealTimeControllerConformanceTest, ThreadPostInvokeOrderTest) {
@@ -119,6 +125,9 @@
   thread->Invoke<void>(RTC_FROM_HERE, [&]() { execution_order.Executed(2); });
   time_controller->AdvanceTime(TimeDelta::Millis(100));
   EXPECT_THAT(execution_order.order(), ElementsAreArray({1, 2}));
+  // Destroy `thread` before `execution_order` to be sure `execution_order`
+  // is not accessed on the posted task after it is destroyed.
+  thread = nullptr;
 }
 
 TEST_P(SimulatedRealTimeControllerConformanceTest,
@@ -136,6 +145,9 @@
   });
   time_controller->AdvanceTime(TimeDelta::Millis(100));
   EXPECT_THAT(execution_order.order(), ElementsAreArray({1, 2}));
+  // Destroy `thread` before `execution_order` to be sure `execution_order`
+  // is not accessed on the posted task after it is destroyed.
+  thread = nullptr;
 }
 
 TEST_P(SimulatedRealTimeControllerConformanceTest,
@@ -158,6 +170,9 @@
                          /*warn_after_ms=*/10'000));
   time_controller->AdvanceTime(TimeDelta::Millis(100));
   EXPECT_THAT(execution_order.order(), ElementsAreArray({1, 2}));
+  // Destroy `task_queue` before `execution_order` to be sure `execution_order`
+  // is not accessed on the posted task after it is destroyed.
+  task_queue = nullptr;
 }
 
 INSTANTIATE_TEST_SUITE_P(ConformanceTest,