diff --git a/common.gypi b/common.gypi
index d5328f39b28837..c51dbca5e74c5b 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.14',
+    'v8_embedder_string': '-node.15',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/include/v8-profiler.h b/deps/v8/include/v8-profiler.h
index 75c9d6a4ae7863..3ec0cd4bb31318 100644
--- a/deps/v8/include/v8-profiler.h
+++ b/deps/v8/include/v8-profiler.h
@@ -921,12 +921,22 @@ class V8_EXPORT EmbedderGraph {
   virtual ~EmbedderGraph() = default;
 };
 
+class QueryObjectPredicate {
+ public:
+  virtual ~QueryObjectPredicate() = default;
+  virtual bool Filter(v8::Local<v8::Object> object) = 0;
+};
+
 /**
  * Interface for controlling heap profiling. Instance of the
  * profiler can be retrieved using v8::Isolate::GetHeapProfiler.
  */
 class V8_EXPORT HeapProfiler {
  public:
+  void QueryObjects(v8::Local<v8::Context> context,
+                    QueryObjectPredicate* predicate,
+                    std::vector<v8::Global<v8::Object>>* objects);
+
   enum SamplingFlags {
     kSamplingNoFlags = 0,
     kSamplingForceGC = 1 << 0,
diff --git a/deps/v8/src/api/api.cc b/deps/v8/src/api/api.cc
index ddf93efc1bd8da..fc784d1f998a9b 100644
--- a/deps/v8/src/api/api.cc
+++ b/deps/v8/src/api/api.cc
@@ -10901,6 +10901,16 @@ int HeapProfiler::GetSnapshotCount() {
   return reinterpret_cast<i::HeapProfiler*>(this)->GetSnapshotsCount();
 }
 
+void HeapProfiler::QueryObjects(Local<Context> v8_context,
+                                QueryObjectPredicate* predicate,
+                                std::vector<Global<Object>>* objects) {
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_context->GetIsolate());
+  i::HeapProfiler* profiler = reinterpret_cast<i::HeapProfiler*>(this);
+  DCHECK_EQ(isolate, profiler->isolate());
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  profiler->QueryObjects(Utils::OpenHandle(*v8_context), predicate, objects);
+}
+
 const HeapSnapshot* HeapProfiler::GetHeapSnapshot(int index) {
   return reinterpret_cast<const HeapSnapshot*>(
       reinterpret_cast<i::HeapProfiler*>(this)->GetSnapshot(index));
diff --git a/deps/v8/src/debug/debug-interface.cc b/deps/v8/src/debug/debug-interface.cc
index fb3b6b69e4be80..51e3633853ba56 100644
--- a/deps/v8/src/debug/debug-interface.cc
+++ b/deps/v8/src/debug/debug-interface.cc
@@ -1211,15 +1211,6 @@ v8::MaybeLocal<v8::Value> EvaluateGlobalForTesting(
   RETURN_ESCAPED(result);
 }
 
-void QueryObjects(v8::Local<v8::Context> v8_context,
-                  QueryObjectPredicate* predicate,
-                  std::vector<v8::Global<v8::Object>>* objects) {
-  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_context->GetIsolate());
-  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
-  isolate->heap_profiler()->QueryObjects(Utils::OpenHandle(*v8_context),
-                                         predicate, objects);
-}
-
 void GlobalLexicalScopeNames(v8::Local<v8::Context> v8_context,
                              std::vector<v8::Global<v8::String>>* names) {
   i::Handle<i::Context> context = Utils::OpenHandle(*v8_context);
diff --git a/deps/v8/src/debug/debug-interface.h b/deps/v8/src/debug/debug-interface.h
index 5dfd505fed6f14..eb346b326392a7 100644
--- a/deps/v8/src/debug/debug-interface.h
+++ b/deps/v8/src/debug/debug-interface.h
@@ -530,16 +530,6 @@ class V8_EXPORT_PRIVATE StackTraceIterator {
                                              bool throw_on_side_effect) = 0;
 };
 
-class QueryObjectPredicate {
- public:
-  virtual ~QueryObjectPredicate() = default;
-  virtual bool Filter(v8::Local<v8::Object> object) = 0;
-};
-
-void QueryObjects(v8::Local<v8::Context> context,
-                  QueryObjectPredicate* predicate,
-                  std::vector<v8::Global<v8::Object>>* objects);
-
 void GlobalLexicalScopeNames(v8::Local<v8::Context> context,
                              std::vector<v8::Global<v8::String>>* names);
 
diff --git a/deps/v8/src/inspector/v8-debugger.cc b/deps/v8/src/inspector/v8-debugger.cc
index 3d4733b5ba936e..d8a08b422505f7 100644
--- a/deps/v8/src/inspector/v8-debugger.cc
+++ b/deps/v8/src/inspector/v8-debugger.cc
@@ -8,6 +8,7 @@
 #include "include/v8-context.h"
 #include "include/v8-function.h"
 #include "include/v8-microtask-queue.h"
+#include "include/v8-profiler.h"
 #include "include/v8-util.h"
 #include "src/inspector/inspected-context.h"
 #include "src/inspector/protocol/Protocol.h"
@@ -38,7 +39,7 @@ void cleanupExpiredWeakPointers(Map& map) {
   }
 }
 
-class MatchPrototypePredicate : public v8::debug::QueryObjectPredicate {
+class MatchPrototypePredicate : public v8::QueryObjectPredicate {
  public:
   MatchPrototypePredicate(V8InspectorImpl* inspector,
                           v8::Local<v8::Context> context,
@@ -994,7 +995,7 @@ v8::Local<v8::Array> V8Debugger::queryObjects(v8::Local<v8::Context> context,
   v8::Isolate* isolate = context->GetIsolate();
   std::vector<v8::Global<v8::Object>> v8_objects;
   MatchPrototypePredicate predicate(m_inspector, context, prototype);
-  v8::debug::QueryObjects(context, &predicate, &v8_objects);
+  isolate->GetHeapProfiler()->QueryObjects(context, &predicate, &v8_objects);
 
   v8::MicrotasksScope microtasksScope(context,
                                       v8::MicrotasksScope::kDoNotRunMicrotasks);
diff --git a/deps/v8/src/profiler/heap-profiler.cc b/deps/v8/src/profiler/heap-profiler.cc
index a23e6d94d1717e..2a3ed138022d5a 100644
--- a/deps/v8/src/profiler/heap-profiler.cc
+++ b/deps/v8/src/profiler/heap-profiler.cc
@@ -247,7 +247,7 @@ Heap* HeapProfiler::heap() const { return ids_->heap(); }
 Isolate* HeapProfiler::isolate() const { return heap()->isolate(); }
 
 void HeapProfiler::QueryObjects(Handle<Context> context,
-                                debug::QueryObjectPredicate* predicate,
+                                v8::QueryObjectPredicate* predicate,
                                 std::vector<v8::Global<v8::Object>>* objects) {
   // We need a stack marker here to allow deterministic passes over the stack.
   // The garbage collection and the two object heap iterators should scan the
diff --git a/deps/v8/src/profiler/heap-profiler.h b/deps/v8/src/profiler/heap-profiler.h
index 2756ade8141531..851972a729a806 100644
--- a/deps/v8/src/profiler/heap-profiler.h
+++ b/deps/v8/src/profiler/heap-profiler.h
@@ -30,7 +30,7 @@ class StringsStorage;
 // generate consistent IDs for moved objects.
 class HeapProfilerNativeMoveListener {
  public:
-  HeapProfilerNativeMoveListener(HeapProfiler* profiler)
+  explicit HeapProfilerNativeMoveListener(HeapProfiler* profiler)
       : profiler_(profiler) {}
   HeapProfilerNativeMoveListener(const HeapProfilerNativeMoveListener& other) =
       delete;
@@ -116,8 +116,7 @@ class HeapProfiler : public HeapObjectAllocationTracker {
 
   Isolate* isolate() const;
 
-  void QueryObjects(Handle<Context> context,
-                    debug::QueryObjectPredicate* predicate,
+  void QueryObjects(Handle<Context> context, QueryObjectPredicate* predicate,
                     std::vector<v8::Global<v8::Object>>* objects);
   void set_native_move_listener(
       std::unique_ptr<HeapProfilerNativeMoveListener> listener) {