diff --git a/src/mapnik_color.cpp b/src/mapnik_color.cpp
index 7d3aec7377..7be4ff23f4 100644
--- a/src/mapnik_color.cpp
+++ b/src/mapnik_color.cpp
@@ -183,7 +183,7 @@ v8::Local<v8::Value> Color::NewInstance(mapnik::color const& color) {
     Color* c = new Color();
     c->this_ = std::make_shared<mapnik::color>(color);
     v8::Local<v8::Value> ext = Nan::New<v8::External>(c);
-    v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+    Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
     if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Color instance");
     return scope.Escape(maybe_local.ToLocalChecked());
 }
diff --git a/src/mapnik_datasource.cpp b/src/mapnik_datasource.cpp
index 3973527fe6..881249a27f 100644
--- a/src/mapnik_datasource.cpp
+++ b/src/mapnik_datasource.cpp
@@ -147,7 +147,7 @@ v8::Local<v8::Value> Datasource::NewInstance(mapnik::datasource_ptr ds_ptr) {
     Datasource* d = new Datasource();
     d->datasource_ = ds_ptr;
     v8::Local<v8::Value> ext = Nan::New<v8::External>(d);
-    v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+    Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
     if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Datasource instance");
     return scope.Escape(maybe_local.ToLocalChecked());
 }
diff --git a/src/mapnik_feature.cpp b/src/mapnik_feature.cpp
index 03258e97f4..d2ac6a188d 100644
--- a/src/mapnik_feature.cpp
+++ b/src/mapnik_feature.cpp
@@ -114,7 +114,7 @@ NAN_METHOD(Feature::fromJSON)
         }
         Feature* feat = new Feature(f);
         v8::Local<v8::Value> ext = Nan::New<v8::External>(feat);
-        v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+        Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
         if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Feature instance");
         else info.GetReturnValue().Set(maybe_local.ToLocalChecked());
     }
@@ -134,7 +134,7 @@ v8::Local<v8::Value> Feature::NewInstance(mapnik::feature_ptr f_ptr)
     Nan::EscapableHandleScope scope;
     Feature* f = new Feature(f_ptr);
     v8::Local<v8::Value> ext = Nan::New<v8::External>(f);
-    v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+    Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
     if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Feature instance");
     return scope.Escape(maybe_local.ToLocalChecked());
 }
diff --git a/src/mapnik_featureset.cpp b/src/mapnik_featureset.cpp
index 36c056d8f7..3e1e50aaa2 100644
--- a/src/mapnik_featureset.cpp
+++ b/src/mapnik_featureset.cpp
@@ -98,7 +98,7 @@ v8::Local<v8::Value> Featureset::NewInstance(mapnik::featureset_ptr fsp)
     Featureset* fs = new Featureset();
     fs->this_ = fsp;
     v8::Local<v8::Value> ext = Nan::New<v8::External>(fs);
-    v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+    Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
     if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Featureset instance");
     return scope.Escape(maybe_local.ToLocalChecked());
 }
diff --git a/src/mapnik_geometry.cpp b/src/mapnik_geometry.cpp
index 24d7b08d45..1512c21e79 100644
--- a/src/mapnik_geometry.cpp
+++ b/src/mapnik_geometry.cpp
@@ -88,7 +88,7 @@ v8::Local<v8::Value> Geometry::NewInstance(mapnik::feature_ptr f) {
     Nan::EscapableHandleScope scope;
     Geometry* g = new Geometry(f);
     v8::Local<v8::Value> ext = Nan::New<v8::External>(g);
-    v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+    Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
     if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Geometry instance");
     return scope.Escape(maybe_local.ToLocalChecked());
 }
diff --git a/src/mapnik_grid_view.cpp b/src/mapnik_grid_view.cpp
index 0ab604cd64..3d66882f0a 100644
--- a/src/mapnik_grid_view.cpp
+++ b/src/mapnik_grid_view.cpp
@@ -83,7 +83,7 @@ v8::Local<v8::Value> GridView::NewInstance(Grid * JSGrid,
     GridView* gv = new GridView(JSGrid);
     gv->this_ = std::make_shared<mapnik::grid_view>(JSGrid->get()->get_view(x,y,w,h));
     v8::Local<v8::Value> ext = Nan::New<v8::External>(gv);
-    v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+    Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
     if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new GridView instance");
     return scope.Escape(maybe_local.ToLocalChecked());
 }
diff --git a/src/mapnik_image.cpp b/src/mapnik_image.cpp
index f4ed8474ed..19c256098a 100644
--- a/src/mapnik_image.cpp
+++ b/src/mapnik_image.cpp
@@ -1615,7 +1615,7 @@ void Image::EIO_AfterCopy(uv_work_t* req)
     {
         Image* im = new Image(closure->im2);
         v8::Local<v8::Value> ext = Nan::New<v8::External>(im);
-        v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+        Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
         if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Image instance");
         v8::Local<v8::Value> argv[2] = { Nan::Null(), maybe_local.ToLocalChecked() };
         Nan::MakeCallback(Nan::GetCurrentContext()->Global(), Nan::New(closure->cb), 2, argv);
@@ -1734,7 +1734,7 @@ v8::Local<v8::Value> Image::_copySync(Nan::NAN_METHOD_ARGS_TYPE info)
                                                     );
         Image* new_im = new Image(imagep);
         v8::Local<v8::Value> ext = Nan::New<v8::External>(new_im);
-        v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+        Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
         if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Image instance");
         return scope.Escape(maybe_local.ToLocalChecked());
     }
@@ -2080,7 +2080,7 @@ void Image::EIO_AfterResize(uv_work_t* req)
     {
         Image* im = new Image(closure->im2);
         v8::Local<v8::Value> ext = Nan::New<v8::External>(im);
-        v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+        Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
         if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Image instance");
         v8::Local<v8::Value> argv[2] = { Nan::Null(), maybe_local.ToLocalChecked() };
         Nan::MakeCallback(Nan::GetCurrentContext()->Global(), Nan::New(closure->cb), 2, argv);
@@ -2267,7 +2267,7 @@ v8::Local<v8::Value> Image::_resizeSync(Nan::NAN_METHOD_ARGS_TYPE info)
         mapnik::util::apply_visitor(visit, *imagep);
         Image* new_im = new Image(imagep);
         v8::Local<v8::Value> ext = Nan::New<v8::External>(new_im);
-        v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+        Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
         if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Image instance");
         return scope.Escape(maybe_local.ToLocalChecked());
     }
@@ -2378,7 +2378,7 @@ v8::Local<v8::Value> Image::_openSync(Nan::NAN_METHOD_ARGS_TYPE info)
                 }
                 Image* im = new Image(imagep);
                 v8::Local<v8::Value> ext = Nan::New<v8::External>(im);
-                v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+                Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
                 if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Image instance");
                 return scope.Escape(maybe_local.ToLocalChecked());
             }
@@ -2516,7 +2516,7 @@ void Image::EIO_AfterOpen(uv_work_t* req)
     {
         Image* im = new Image(closure->im);
         v8::Local<v8::Value> ext = Nan::New<v8::External>(im);
-        v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+        Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
         if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Image instance");
         v8::Local<v8::Value> argv[2] = { Nan::Null(), maybe_local.ToLocalChecked() };
         Nan::MakeCallback(Nan::GetCurrentContext()->Global(), Nan::New(closure->cb), 2, argv);
@@ -2725,7 +2725,7 @@ v8::Local<v8::Value> Image::_fromSVGSync(bool fromFile, Nan::NAN_METHOD_ARGS_TYP
         image_ptr imagep = std::make_shared<mapnik::image_any>(im);
         Image *im2 = new Image(imagep);
         v8::Local<v8::Value> ext = Nan::New<v8::External>(im2);
-        v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+        Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
         if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Image instance");
         return scope.Escape(maybe_local.ToLocalChecked());
     }
@@ -2963,7 +2963,7 @@ void Image::EIO_AfterFromSVG(uv_work_t* req)
     {
         Image* im = new Image(closure->im);
         v8::Local<v8::Value> ext = Nan::New<v8::External>(im);
-        v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+        Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
         if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Image instance");
         v8::Local<v8::Value> argv[2] = { Nan::Null(), maybe_local.ToLocalChecked() };
         Nan::MakeCallback(Nan::GetCurrentContext()->Global(), Nan::New(closure->cb), 2, argv);
@@ -3296,7 +3296,7 @@ v8::Local<v8::Value> Image::_fromBufferSync(Nan::NAN_METHOD_ARGS_TYPE info)
         image_ptr imagep = std::make_shared<mapnik::image_any>(im_wrapper);
         Image* im = new Image(imagep);
         v8::Local<v8::Value> ext = Nan::New<v8::External>(im);
-        v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+        Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
         if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Image instance");
         v8::Local<v8::Object> image_obj = maybe_local.ToLocalChecked()->ToObject();
         image_obj->Set(Nan::New("_buffer").ToLocalChecked(),obj);
@@ -3352,7 +3352,7 @@ v8::Local<v8::Value> Image::_fromBytesSync(Nan::NAN_METHOD_ARGS_TYPE info)
             image_ptr imagep = std::make_shared<mapnik::image_any>(reader->read(0,0,reader->width(),reader->height()));
             Image* im = new Image(imagep);
             v8::Local<v8::Value> ext = Nan::New<v8::External>(im);
-            v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+            Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
             if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Image instance");
             return scope.Escape(maybe_local.ToLocalChecked());
         }
@@ -3523,7 +3523,7 @@ void Image::EIO_AfterFromBytes(uv_work_t* req)
     {
         Image* im = new Image(closure->im);
         v8::Local<v8::Value> ext = Nan::New<v8::External>(im);
-        v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+        Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
         if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Image instance");
         v8::Local<v8::Value> argv[2] = { Nan::Null(), maybe_local.ToLocalChecked() };
         Nan::MakeCallback(Nan::GetCurrentContext()->Global(), Nan::New(closure->cb), 2, argv);
diff --git a/src/mapnik_image_view.cpp b/src/mapnik_image_view.cpp
index cfd7b47373..36a18c4b7f 100644
--- a/src/mapnik_image_view.cpp
+++ b/src/mapnik_image_view.cpp
@@ -98,7 +98,7 @@ v8::Local<v8::Value> ImageView::NewInstance(Image * JSImage ,
     ImageView* imv = new ImageView(JSImage);
     imv->this_ = std::make_shared<mapnik::image_view_any>(mapnik::create_view(*(JSImage->get()),x,y,w,h));
     v8::Local<v8::Value> ext = Nan::New<v8::External>(imv);
-    v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+    Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
     if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new ImageView instance");
     return scope.Escape(maybe_local.ToLocalChecked());
 }
diff --git a/src/mapnik_layer.cpp b/src/mapnik_layer.cpp
index a324288676..d58019511c 100644
--- a/src/mapnik_layer.cpp
+++ b/src/mapnik_layer.cpp
@@ -111,7 +111,7 @@ v8::Local<v8::Value> Layer::NewInstance(mapnik::layer const& lay_ref) {
     // copy new mapnik::layer into the shared_ptr
     l->layer_ = std::make_shared<mapnik::layer>(lay_ref);
     v8::Local<v8::Value> ext = Nan::New<v8::External>(l);
-    v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+    Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
     if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Layer instance");
     return scope.Escape(maybe_local.ToLocalChecked());
 }
diff --git a/src/mapnik_map.cpp b/src/mapnik_map.cpp
index ec4f91f682..a14c5be465 100644
--- a/src/mapnik_map.cpp
+++ b/src/mapnik_map.cpp
@@ -1456,7 +1456,7 @@ NAN_METHOD(Map::clone)
     Map* m2 = new Map();
     m2->map_ = std::make_shared<mapnik::Map>(*m->map_);
     v8::Local<v8::Value> ext = Nan::New<v8::External>(m2);
-    v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+    Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
     if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Map instance");
     else info.GetReturnValue().Set(maybe_local.ToLocalChecked());
 }
diff --git a/src/mapnik_memory_datasource.cpp b/src/mapnik_memory_datasource.cpp
index cb87e2a082..3a1c51cd21 100644
--- a/src/mapnik_memory_datasource.cpp
+++ b/src/mapnik_memory_datasource.cpp
@@ -113,7 +113,7 @@ v8::Local<v8::Value> MemoryDatasource::NewInstance(mapnik::datasource_ptr ds_ptr
     MemoryDatasource* d = new MemoryDatasource();
     d->datasource_ = ds_ptr;
     v8::Local<v8::Value> ext = Nan::New<v8::External>(d);
-    v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+    Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
     if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new MemoryDatasource instance");
     return scope.Escape(maybe_local.ToLocalChecked());
 }
diff --git a/src/mapnik_vector_tile.cpp b/src/mapnik_vector_tile.cpp
index dfeee99d39..9fb5e3063d 100644
--- a/src/mapnik_vector_tile.cpp
+++ b/src/mapnik_vector_tile.cpp
@@ -1396,7 +1396,7 @@ NAN_METHOD(VectorTile::layer)
         }
     }
     v8::Local<v8::Value> ext = Nan::New<v8::External>(v);
-    v8::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
+    Nan::MaybeLocal<v8::Object> maybe_local = Nan::NewInstance(Nan::New(constructor)->GetFunction(), 1, &ext);
     if (maybe_local.IsEmpty()) Nan::ThrowError("Could not create new Layer instance");
     else info.GetReturnValue().Set(maybe_local.ToLocalChecked());
     return;