diff --git a/common.gypi b/common.gypi
index 89fcb8f3243333..fbee26b668143a 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/objects/fixed-array-inl.h b/deps/v8/src/objects/fixed-array-inl.h
index 43b77539e148e8..d6e1f4bb109586 100644
--- a/deps/v8/src/objects/fixed-array-inl.h
+++ b/deps/v8/src/objects/fixed-array-inl.h
@@ -85,6 +85,7 @@ bool FixedArray::is_the_hole(Isolate* isolate, int index) {
   return get(isolate, index).IsTheHole(isolate);
 }
 
+#if !defined(_WIN32) || defined(_WIN64)
 void FixedArray::set(int index, Smi value) {
   DCHECK_NE(map(), GetReadOnlyRoots().fixed_cow_array_map());
   DCHECK_LT(static_cast<unsigned>(index), static_cast<unsigned>(length()));
@@ -92,6 +93,7 @@ void FixedArray::set(int index, Smi value) {
   int offset = OffsetOfElementAt(index);
   RELAXED_WRITE_FIELD(*this, offset, value);
 }
+#endif
 
 void FixedArray::set(int index, Object value) {
   DCHECK_NE(GetReadOnlyRoots().fixed_cow_array_map(), map());
diff --git a/deps/v8/src/objects/fixed-array.h b/deps/v8/src/objects/fixed-array.h
index d6c5077aa0f143..a5541202413dfb 100644
--- a/deps/v8/src/objects/fixed-array.h
+++ b/deps/v8/src/objects/fixed-array.h
@@ -134,7 +134,18 @@ class FixedArray
   inline bool is_the_hole(Isolate* isolate, int index);
 
   // Setter that doesn't need write barrier.
+#if defined(_WIN32) && !defined(_WIN64)
+  inline void set(int index, Smi value) {
+    DCHECK_NE(map(), GetReadOnlyRoots().fixed_cow_array_map());
+    DCHECK_LT(static_cast<unsigned>(index), static_cast<unsigned>(length()));
+    DCHECK(Object(value).IsSmi());
+    int offset = OffsetOfElementAt(index);
+    RELAXED_WRITE_FIELD(*this, offset, value);
+  }
+#else
   inline void set(int index, Smi value);
+#endif
+
   // Setter with explicit barrier mode.
   inline void set(int index, Object value, WriteBarrierMode mode);
 
diff --git a/deps/v8/src/objects/tagged-field.h b/deps/v8/src/objects/tagged-field.h
index d9fc0bb1027739..7faf9e9ac95708 100644
--- a/deps/v8/src/objects/tagged-field.h
+++ b/deps/v8/src/objects/tagged-field.h
@@ -49,7 +49,7 @@ class TaggedField : public AllStatic {
                                int offset = 0);
 
   static inline void Relaxed_Store(HeapObject host, T value);
-  static inline void Relaxed_Store(HeapObject host, int offset, T value);
+  static void Relaxed_Store(HeapObject host, int offset, T value);
 
   static inline T Acquire_Load(HeapObject host, int offset = 0);
   static inline T Acquire_Load_No_Unpack(PtrComprCageBase cage_base,