diff --git a/common.gypi b/common.gypi
index b6c1039d838..3908aea32c4 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.5',
+    'v8_embedder_string': '-node.6',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/include/v8-cppgc.h b/deps/v8/include/v8-cppgc.h
index 201773f59dd..7761d87fd0a 100644
--- a/deps/v8/include/v8-cppgc.h
+++ b/deps/v8/include/v8-cppgc.h
@@ -77,6 +77,9 @@ struct WrapperDescriptor final {
 };
 
 struct V8_EXPORT CppHeapCreateParams {
+  CppHeapCreateParams(const CppHeapCreateParams&) = delete;
+  CppHeapCreateParams& operator=(const CppHeapCreateParams&) = delete;
+
   std::vector<std::unique_ptr<cppgc::CustomSpaceBase>> custom_spaces;
   WrapperDescriptor wrapper_descriptor;
 };