diff --git a/meshgpt_pytorch/meshgpt_pytorch.py b/meshgpt_pytorch/meshgpt_pytorch.py
index 451bec3..ab4e330 100644
--- a/meshgpt_pytorch/meshgpt_pytorch.py
+++ b/meshgpt_pytorch/meshgpt_pytorch.py
@@ -157,10 +157,18 @@ def derive_angle(x, y, eps = 1e-5):
 def get_derived_face_features(
     face_coords: Float['b nf nvf 3']  # 3 or 4 vertices with 3 coordinates
 ):
-    shifted_face_coords = torch.cat((face_coords[:, :, -1:], face_coords[:, :, :-1]), dim = 2)
+    is_quad = face_coords.shape[-2] == 4
+
+    # shift face coordinates depending on triangles or quads
+
+    shifted_face_coords = torch.roll(face_coords, 1, dims = (2,))
 
     angles  = derive_angle(face_coords, shifted_face_coords)
 
+    if is_quad:
+        # @sbriseid says quads need to be shifted by 2
+        shifted_face_coords = torch.roll(shifted_face_coords, 1, dims = (2,))
+
     edge1, edge2, *_ = (face_coords - shifted_face_coords).unbind(dim = 2)
 
     cross_product = torch.cross(edge1, edge2, dim = -1)
diff --git a/meshgpt_pytorch/version.py b/meshgpt_pytorch/version.py
index 7bf3831..b0ff349 100644
--- a/meshgpt_pytorch/version.py
+++ b/meshgpt_pytorch/version.py
@@ -1 +1 @@
-__version__ = '1.5.7'
+__version__ = '1.5.12'
diff --git a/setup.py b/setup.py
index 5da26ce..437d381 100644
--- a/setup.py
+++ b/setup.py
@@ -31,10 +31,11 @@
     'environs',
     'gateloop-transformer>=0.2.2',
     'jaxtyping',
-    'local-attention>=1.9.0',
+    'local-attention>=1.9.11',
     'numpy',
     'pytorch-custom-utils>=0.0.9',
     'rotary-embedding-torch>=0.6.4',
+    'sentencepiece',
     'taylor-series-linear-attention>=0.1.6',
     'torch>=2.1',
     'torch_geometric',