diff --git a/common.gypi b/common.gypi
index c3a79ae936847c..040d0d1593eb15 100644
--- a/common.gypi
+++ b/common.gypi
@@ -35,7 +35,7 @@
 
     # 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.29',
+    'v8_embedder_string': '-node.30',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/include/v8.h b/deps/v8/include/v8.h
index ef7bb43efb1171..d09055e15d2fbd 100644
--- a/deps/v8/include/v8.h
+++ b/deps/v8/include/v8.h
@@ -6279,6 +6279,7 @@ typedef bool (*AccessCheckCallback)(Local<Context> accessing_context,
                                     Local<Object> accessed_object,
                                     Local<Value> data);
 
+class CFunction;
 /**
  * A FunctionTemplate is used to create functions at runtime. There
  * can only be one function created from a FunctionTemplate in a
@@ -6387,7 +6388,8 @@ class V8_EXPORT FunctionTemplate : public Template {
       Local<Value> data = Local<Value>(),
       Local<Signature> signature = Local<Signature>(), int length = 0,
       ConstructorBehavior behavior = ConstructorBehavior::kAllow,
-      SideEffectType side_effect_type = SideEffectType::kHasSideEffect);
+      SideEffectType side_effect_type = SideEffectType::kHasSideEffect,
+      const CFunction* not_available_in_node_v14_yet = nullptr);
 
   /**
    * Creates a function template backed/cached by a private property.
@@ -6418,7 +6420,8 @@ class V8_EXPORT FunctionTemplate : public Template {
    */
   void SetCallHandler(
       FunctionCallback callback, Local<Value> data = Local<Value>(),
-      SideEffectType side_effect_type = SideEffectType::kHasSideEffect);
+      SideEffectType side_effect_type = SideEffectType::kHasSideEffect,
+      const CFunction* not_available_in_node_v14_yet = nullptr);
 
   /** Set the predefined length property for the FunctionTemplate. */
   void SetLength(int length);
@@ -8110,7 +8113,10 @@ class V8_EXPORT Isolate {
           array_buffer_allocator_shared(),
           external_references(nullptr),
           allow_atomics_wait(true),
-          only_terminate_in_safe_scope(false) {}
+          only_terminate_in_safe_scope(false),
+          embedder_wrapper_type_index(-1),
+          embedder_wrapper_object_index(-1) {}
+
 
     /**
      * Allows the host application to provide the address of a function that is
@@ -8174,6 +8180,10 @@ class V8_EXPORT Isolate {
      * Termination is postponed when there is no active SafeForTerminationScope.
      */
     bool only_terminate_in_safe_scope;
+
+    // Not available in Node v14 yet.
+    int embedder_wrapper_type_index;
+    int embedder_wrapper_object_index;
   };
 
 
diff --git a/deps/v8/src/api/api.cc b/deps/v8/src/api/api.cc
index 65853fdd94a702..9693e4c843ed18 100644
--- a/deps/v8/src/api/api.cc
+++ b/deps/v8/src/api/api.cc
@@ -1499,7 +1499,7 @@ static Local<FunctionTemplate> FunctionTemplateNew(
 Local<FunctionTemplate> FunctionTemplate::New(
     Isolate* isolate, FunctionCallback callback, v8::Local<Value> data,
     v8::Local<Signature> signature, int length, ConstructorBehavior behavior,
-    SideEffectType side_effect_type) {
+    SideEffectType side_effect_type, const CFunction*) {
   i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
   // Changes to the environment cannot be captured in the snapshot. Expect no
   // function templates when the isolate is created for serialization.
@@ -1540,7 +1540,8 @@ Local<AccessorSignature> AccessorSignature::New(
 
 void FunctionTemplate::SetCallHandler(FunctionCallback callback,
                                       v8::Local<Value> data,
-                                      SideEffectType side_effect_type) {
+                                      SideEffectType side_effect_type,
+                                      const CFunction*) {
   auto info = Utils::OpenHandle(this);
   EnsureNotInstantiated(info, "v8::FunctionTemplate::SetCallHandler");
   i::Isolate* isolate = info->GetIsolate();