diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives_extract.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives_extract.py
index ef9c3e849..0bbccab1b 100644
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives_extract.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives_extract.py
@@ -871,14 +871,14 @@ class PrimitiveCreator:
 
     def __get_positions(self):
         self.locs = np.empty(len(self.blender_mesh.vertices) * 3, dtype=np.float32)
-        source = self.key_blocks[0].relative_key.data if self.key_blocks else self.blender_mesh.vertices
+        source = self.key_blocks[0].relative_key.points if self.key_blocks else self.blender_mesh.vertices
         source.foreach_get('co', self.locs)
         self.locs = self.locs.reshape(len(self.blender_mesh.vertices), 3)
 
         self.morph_locs = []
         for key_block in self.key_blocks:
             vs = np.empty(len(self.blender_mesh.vertices) * 3, dtype=np.float32)
-            key_block.data.foreach_get('co', vs)
+            key_block.points.foreach_get('co', vs)
             vs = vs.reshape(len(self.blender_mesh.vertices), 3)
             self.morph_locs.append(vs)
 
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_mesh.py b/io_scene_gltf2/blender/imp/gltf2_blender_mesh.py
index c0c252a57..6e52e2ff6 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_mesh.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_mesh.py
@@ -370,7 +370,7 @@ def do_primitives(gltf, mesh_idx, skin_idx, mesh, ob):
 
             ob.shape_key_add(name=sk_name)
             key_block = mesh.shape_keys.key_blocks[sk_name]
-            key_block.data.foreach_set('co', squish(sk_vert_locs[sk_i]))
+            key_block.points.foreach_set('co', squish(sk_vert_locs[sk_i]))
 
             sk_i += 1