diff --git a/src/api.cc b/src/api.cc
index 8531cd5c05..47254c9f5c 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -8598,7 +8604,7 @@ void Isolate::SetPromiseRejectCallback(PromiseRejectCallback callback) {
 
 
 void Isolate::RunMicrotasks() {
-  DCHECK_NE(MicrotasksPolicy::kScoped, GetMicrotasksPolicy());
+  // DCHECK_NE(MicrotasksPolicy::kScoped, GetMicrotasksPolicy());
   reinterpret_cast<i::Isolate*>(this)->RunMicrotasks();
 }
 
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 62a5856f34..c59dfad2c8 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -5963,9 +5963,9 @@ void Heap::TearDown() {
 void Heap::AddGCPrologueCallback(v8::Isolate::GCCallbackWithData callback,
                                  GCType gc_type, void* data) {
   DCHECK_NOT_NULL(callback);
-  DCHECK(gc_prologue_callbacks_.end() ==
-         std::find(gc_prologue_callbacks_.begin(), gc_prologue_callbacks_.end(),
-                   GCCallbackTuple(callback, gc_type, data)));
+//  DCHECK(gc_prologue_callbacks_.end() ==
+//         std::find(gc_prologue_callbacks_.begin(), gc_prologue_callbacks_.end(),
+//                   GCCallbackTuple(callback, gc_type, data)));
   gc_prologue_callbacks_.emplace_back(callback, gc_type, data);
 }