diff --git a/2068.patch b/2068.patch
new file mode 100644
index 0000000..4ab9f62
--- /dev/null
+++ b/2068.patch
@@ -0,0 +1,30 @@
+From a9c42af05e574b6e4a3ee3edd5ac70894cfdde48 Mon Sep 17 00:00:00 2001
+From: "Benjamin A. Beasley" <code@musicinmybrain.net>
+Date: Wed, 8 Nov 2023 08:41:05 -0500
+Subject: [PATCH] Add missing engine keyword in boolean test_multiple
+
+---
+ tests/test_boolean.py | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/tests/test_boolean.py b/tests/test_boolean.py
+index 45e0eda02..bdb50ef7c 100644
+--- a/tests/test_boolean.py
++++ b/tests/test_boolean.py
+@@ -70,14 +70,14 @@ def test_multiple(self):
+         """
+         Make sure boolean operations work on multiple meshes.
+         """
+-        for _engine, exists in engines:
++        for engine, exists in engines:
+             if not exists:
+                 continue
+             a = g.trimesh.primitives.Sphere(center=[0, 0, 0])
+             b = g.trimesh.primitives.Sphere(center=[0, 0, 0.75])
+             c = g.trimesh.primitives.Sphere(center=[0, 0, 1.5])
+ 
+-            r = g.trimesh.boolean.union([a, b, c])
++            r = g.trimesh.boolean.union([a, b, c], engine=engine)
+ 
+             assert r.is_volume
+             assert r.body_count == 1
diff --git a/python-trimesh.spec b/python-trimesh.spec
index 5b36cdd..bbcd011 100644
--- a/python-trimesh.spec
+++ b/python-trimesh.spec
@@ -2,7 +2,7 @@
 %bcond skimage 1
 
 Name:           python-trimesh
-Version:        4.0.2
+Version:        4.0.3
 Release:        %autorelease
 Summary:        Import, export, process, analyze and view triangular meshes
 
@@ -15,6 +15,10 @@ License:        MIT AND BSD-3-Clause AND Zlib
 URL:            https://trimsh.org
 Source:         https://github.com/mikedh/trimesh/archive/%{version}/trimesh-%{version}.tar.gz
 
+# Add missing engine keyword in boolean test_multiple
+# https://github.com/mikedh/trimesh/pull/2068
+Patch:          https://github.com/mikedh/trimesh/pull/2068.patch
+
 # The combination of an arched package with only noarch binary packages makes
 # it easier for us to detect arch-dependent test failures, since the tests will
 # always be run on every platform, and easier for us to skip failing tests if
@@ -147,7 +151,7 @@ Recommends:     /usr/bin/openscad
 
 
 %prep
-%autosetup -n trimesh-%{version}
+%autosetup -n trimesh-%{version} -p1
 
 # Stub out unavailable pyinstrument test dependency; we don’t really need to do
 # profiling anyway. Note that this does mean that API function
@@ -181,6 +185,7 @@ EOF
 #            was retired; the current version was 4.x.
 #   glooey: not yet packaged, https://github.com/kxgames/glooey; needs fonts
 #           that are not currently packaged unbundled from its assets
+#   manifold3d: not yet packaged, https://github.com/elalish/manifold/
 #   meshio: not yet packaged, https://github.com/nschloe/meshio
 #   pymeshlab: not yet packaged, https://github.com/cnr-isti-vclab/PyMeshLab/;
 #              bundles MeshLab, which is a nontrivial package that has its own
@@ -207,6 +212,7 @@ for pkg in \
     coveralls \
     embreex \
     glooey \
+    manifold3d \
     meshio \
     mypy \
     pyinstrument \
diff --git a/sources b/sources
index 0afe9d3..7637146 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (trimesh-4.0.2.tar.gz) = 7c0c8cbf40f03f4fd92156306f0a0d4d0a1dbf774c9a1743d63d82be2264b50915f2f6ea2cdebd0e81390e7f96acb47eca9980f3829311ec027706ef1cc143c0
+SHA512 (trimesh-4.0.3.tar.gz) = 1eec21e3bcbc80f7ea939b16753ac24d45d750c176044d57a5c2217d46a1559478ab260147e82b1367df7dcb9ecf9aa11dda3a023ebb561f06578672bcc455d5