diff --git a/common.gypi b/common.gypi
index 9b37dc9ff581a3..f8d98fb492db42 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.4',
+    'v8_embedder_string': '-node.5',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/codegen/tnode.h b/deps/v8/src/codegen/tnode.h
index cd7bd8db98c241..7629e89ad693fe 100644
--- a/deps/v8/src/codegen/tnode.h
+++ b/deps/v8/src/codegen/tnode.h
@@ -269,8 +269,9 @@ using BuiltinPtr = Smi;
 template <class T, class U>
 struct is_subtype {
   static const bool value =
-      std::is_base_of<U, T>::value || (std::is_same<U, MaybeObject>::value &&
-                                       std::is_convertible<T, Object>::value);
+      std::disjunction<std::is_base_of<U, T>,
+                       std::conjunction<std::is_same<U, MaybeObject>,
+                                        std::is_convertible<T, Object>>>::value;
 };
 template <class T1, class T2, class U>
 struct is_subtype<UnionT<T1, T2>, U> {