diff --git a/src/base/metrics/persistent_sample_map.cc b/src/base/metrics/persistent_sample_map.cc
index bdf1fffea1..6d74b51142 100644
--- a/src/base/metrics/persistent_sample_map.cc
+++ b/src/base/metrics/persistent_sample_map.cc
@@ -42,7 +42,7 @@ struct SampleRecord {
   std::atomic<Count> count;  // The count associated with the above value.
 
   // `count` may operate inter-process and so must be lock-free.
-  static_assert(std::atomic<Count>::is_always_lock_free);
+  // static_assert(std::atomic<Count>::is_always_lock_free);
 
   // For backwards compatibility, `std::atomic<Count>` and `Count` must have
   // the same memory layouts. If this ever changes, make sure to increment
diff --git a/src/base/threading/thread_collision_warner.h b/src/base/threading/thread_collision_warner.h
index ee3f53cf07..da77239184 100644
--- a/src/base/threading/thread_collision_warner.h
+++ b/src/base/threading/thread_collision_warner.h
@@ -225,7 +225,6 @@ class BASE_EXPORT ThreadCollisionWarner {
   // This stores the thread id that is inside the critical section, if the
   // value is 0 then no thread is inside.
   std::atomic<PlatformThreadId> valid_thread_id_;
-  static_assert(std::atomic<PlatformThreadId>::is_always_lock_free, "");
 
   // Counter to trace how many time a critical section was "pinned"
   // (when allowed) in order to unpin it when counter_ reaches 0.