diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 27c57e7..c1c1b8c 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,5 +1,5 @@
 {% set name = "cvxpy" %}
-{% set version = "1.2.3" %}
+{% set version = "1.3.0" %}
 
 package:
   name: cvxpy-split
@@ -7,9 +7,11 @@ package:
 
 source:
   url: https://pypi.io/packages/source/{{ name[0] }}/{{ name }}/{{ name }}-{{ version }}.tar.gz
-  sha256: 21a794b6fd2f760a9d766d68fbe4946534f65e89b73e89b889c5503985558b86
+  sha256: 66cce67bdc635b9b29066510474392c0cfc0d95db8adda4010dc8cdd8e046250
   patches:
-    - patches/0001-remove-pyproject.toml.patch
+    # backport https://github.com/cvxpy/cvxpy/pull/1998 (two patches)
+    - patches/0001-fix-relative-import.patch
+    - patches/0002-do-not-use-__builtins__-as-dict.patch
 
 build:
   number: 0
@@ -55,7 +57,10 @@ outputs:
 
   - name: cvxpy-base
     build:
-      script: {{ PYTHON }} -m pip install . --no-deps -vvv
+      script:
+        - rm $SRC_DIR/pyproject.toml    # [unix]
+        - del %SRC_DIR%\pyproject.toml  # [win]
+        - {{ PYTHON }} -m pip install . --no-deps -vvv
     requirements:
       build:
         - python                                 # [build_platform != target_platform]
@@ -74,37 +79,9 @@ outputs:
         - scipy >=1.1.0
     test:
       imports:
+        # public interface is defined (see #75) to be the content of
+        # https://github.com/cvxpy/cvxpy/blob/master/cvxpy/__init__.py
         - cvxpy
-        - cvxpy.atoms
-        - cvxpy.atoms.affine
-        - cvxpy.atoms.elementwise
-        - cvxpy.cvxcore
-        - cvxpy.cvxcore.python
-        - cvxpy.constraints
-        - cvxpy.expressions
-        - cvxpy.expressions.constants
-        - cvxpy.interface
-        - cvxpy.interface.numpy_interface
-        - cvxpy.lin_ops
-        - cvxpy.problems
-        - cvxpy.reductions
-        - cvxpy.reductions.complex2real
-        - cvxpy.reductions.complex2real.atom_canonicalizers
-        - cvxpy.reductions.dcp2cone
-        - cvxpy.reductions.dcp2cone.atom_canonicalizers
-        - cvxpy.reductions.eliminate_pwl
-        - cvxpy.reductions.eliminate_pwl.atom_canonicalizers
-        - cvxpy.reductions.qp2quad_form
-        - cvxpy.reductions.qp2quad_form.atom_canonicalizers
-        - cvxpy.reductions.eliminate_pwl.atom_canonicalizers
-        - cvxpy.reductions.solvers
-        - cvxpy.reductions.solvers.conic_solvers
-        - cvxpy.reductions.solvers.qp_solvers
-        - cvxpy.reductions.solvers.lp_solvers
-        - cvxpy.tests
-        - cvxpy.transforms
-        - cvxpy.utilities
-        - cvxpy.cvxcore.python
 
 about:
   home: http://www.cvxpy.org/
diff --git a/recipe/patches/0001-fix-relative-import.patch b/recipe/patches/0001-fix-relative-import.patch
new file mode 100644
index 0000000..5e030c1
--- /dev/null
+++ b/recipe/patches/0001-fix-relative-import.patch
@@ -0,0 +1,28 @@
+From 7d087d5781a5e9deaf3e4459376d93d5d700e4b0 Mon Sep 17 00:00:00 2001
+From: "H. Vetinari" <h.vetinari@gmx.com>
+Date: Wed, 4 Jan 2023 15:17:01 +1100
+Subject: [PATCH 1/2] fix relative import
+
+---
+ cvxpy/tests/test_perspective.py | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/cvxpy/tests/test_perspective.py b/cvxpy/tests/test_perspective.py
+index 957c0683b..e7d841008 100644
+--- a/cvxpy/tests/test_perspective.py
++++ b/cvxpy/tests/test_perspective.py
+@@ -18,10 +18,9 @@ import numpy as np
+ import pytest
+ 
+ import cvxpy as cp
++from cvxpy.atoms.perspective import perspective
+ from cvxpy.constraints.exponential import ExpCone
+ 
+-from ..atoms.perspective import perspective
+-
+ 
+ def test_monotonicity():
+     x = cp.Variable(nonneg=True)
+-- 
+2.38.1.windows.1
+
diff --git a/recipe/patches/0001-remove-pyproject.toml.patch b/recipe/patches/0001-remove-pyproject.toml.patch
deleted file mode 100644
index 4b56f72..0000000
--- a/recipe/patches/0001-remove-pyproject.toml.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-From 1a6489133ab1822d133aac463a5bec6320cb472e Mon Sep 17 00:00:00 2001
-From: "H. Vetinari" <h.vetinari@gmx.com>
-Date: Sun, 29 Mar 2020 17:50:48 +0200
-Subject: [PATCH] remove pyproject.toml
-
----
- pyproject.toml | 26 --------------------------
- 1 file changed, 26 deletions(-)
- delete mode 100644 pyproject.toml
-
-diff --git a/pyproject.toml b/pyproject.toml
-deleted file mode 100644
-index ed0bbd1bb..000000000
---- a/pyproject.toml
-+++ /dev/null
-@@ -1,26 +0,0 @@
--[tool.isort]
--include_trailing_comma = true
--use_parentheses = true
--extend_skip = [
--    "cvxpy/__init__.py",
--    "cvxpy/reductions/__init__.py",
--    "cvxpy/reductions/dcp2cone/atom_canonicalizers/__init__.py"
--]
--
--[tool.pytest.ini_options]
--testpaths = [
--    "cvxpy/tests/"
--]
--
--[build-system]
--requires = [
--    "numpy>=1.15,<1.16; python_version=='3.7'",
--    "numpy>=1.16,<1.17; python_version=='3.8'",
--    "numpy>=1.19,<1.20; python_version=='3.9' and (platform_machine!='arm64' or platform_system!='Darwin')",
--    "numpy>=1.21.4,<1.22; python_version=='3.9' and (platform_machine=='arm64' and platform_system=='Darwin')",
--    "numpy>=1.21,<1.22; python_version=='3.10' and (platform_machine!='arm64' or platform_system!='Darwin')",
--    "numpy>=1.21.4,<1.22; python_version=='3.10' and (platform_machine=='arm64' and platform_system=='Darwin')",
--    "scipy >= 1.1.0",
--    "setuptools>=40.8.0,<=64.0.2",
--    "wheel"
--]
--- 
-2.38.1.windows.1
-
diff --git a/recipe/patches/0002-do-not-use-__builtins__-as-dict.patch b/recipe/patches/0002-do-not-use-__builtins__-as-dict.patch
new file mode 100644
index 0000000..978001f
--- /dev/null
+++ b/recipe/patches/0002-do-not-use-__builtins__-as-dict.patch
@@ -0,0 +1,32 @@
+From eded1ed71728208e72528edae09f500d5ed10108 Mon Sep 17 00:00:00 2001
+From: "H. Vetinari" <h.vetinari@gmx.com>
+Date: Wed, 4 Jan 2023 15:47:54 +1100
+Subject: [PATCH 2/2] do not use __builtins__ as dict
+
+---
+ cvxpy/atoms/affine/sum.py | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/cvxpy/atoms/affine/sum.py b/cvxpy/atoms/affine/sum.py
+index 380239af9..dfdba0ad4 100644
+--- a/cvxpy/atoms/affine/sum.py
++++ b/cvxpy/atoms/affine/sum.py
+@@ -13,6 +13,7 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ """
++import builtins
+ from functools import wraps
+ from typing import List, Optional, Tuple
+ 
+@@ -109,6 +110,6 @@ def sum(expr, axis: Optional[int] = None, keepdims: bool = False):
+     """Wrapper for Sum class.
+     """
+     if isinstance(expr, list):
+-        return __builtins__['sum'](expr)
++        return builtins.sum(expr)
+     else:
+         return Sum(expr, axis, keepdims)
+-- 
+2.38.1.windows.1
+