diff --git a/common.gypi b/common.gypi
index ee7b36cff46..80cb4f44ede 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.h b/deps/v8/include/v8.h
index 5a6cf61ebf7..1e3077bbf72 100644
--- a/deps/v8/include/v8.h
+++ b/deps/v8/include/v8.h
@@ -7435,7 +7435,6 @@ class PromiseRejectMessage {
 typedef void (*PromiseRejectCallback)(PromiseRejectMessage message);
 
 // --- Microtasks Callbacks ---
-V8_DEPRECATED("Use *WithData version.")
 typedef void (*MicrotasksCompletedCallback)(Isolate*);
 typedef void (*MicrotasksCompletedCallbackWithData)(Isolate*, void*);
 typedef void (*MicrotaskCallback)(void* data);