diff --git a/.github/workflows/build_wheels.yml b/.github/workflows/build_wheels.yml
index b28b650..40f2cde 100644
--- a/.github/workflows/build_wheels.yml
+++ b/.github/workflows/build_wheels.yml
@@ -3,16 +3,16 @@ name: Build
 on:
   pull_request:
     branches:
-      - "**"
+      - master
 
 jobs:
   build_wheels:
     name: Build wheels on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
-#        os: [ubuntu-latest, macos-13, macos-14] currently only works on Linux
-        os: [ubuntu-latest]
+        os: [ubuntu-latest, macos-13, macos-14]
 
     steps:
       - name: Checkout the repository
diff --git a/.github/workflows/deploy_test_pypi.yml b/.github/workflows/deploy_test_pypi.yml
index 566f7e1..902f8cc 100644
--- a/.github/workflows/deploy_test_pypi.yml
+++ b/.github/workflows/deploy_test_pypi.yml
@@ -2,7 +2,7 @@ name: Test PyPI deploy
 on:
   push:
     branches:
-      - "**"
+      - master
 
 jobs:
   generate_version:
diff --git a/CMakeLists.txt b/CMakeLists.txt
index b0c42f1..21940d2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,9 +22,13 @@ project(
 
 add_link_options(-lgmp)
 
-add_subdirectory(src/swisspair_cpp)
+# macos stuff
+include_directories(/opt/homebrew/include)
+link_directories(/opt/homebrew/lib)
+
 add_subdirectory(src/swisspair_cpp/gmpwrap)
 add_subdirectory(src/swisspair_cpp/Minimum-Cost-Perfect-Matching)
+add_subdirectory(src/swisspair_cpp)
 
 # Find the module development requirements (requires FindPython from 3.17 or
 # scikit-build-core's built-in backport)
diff --git a/pyproject.toml b/pyproject.toml
index ed92060..7c09908 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,3 +19,8 @@ requires=[]
 before-all = """
 yum -y install gmp-devel || apk add gmp-dev
 """
+
+[tool.cibuildwheel.macos]
+before-all = """
+brew install gmp pkg-config
+"""
diff --git a/src/swisspair_cpp b/src/swisspair_cpp
index 50e03ac..f74dd87 160000
--- a/src/swisspair_cpp
+++ b/src/swisspair_cpp
@@ -1 +1 @@
-Subproject commit 50e03ac1ca32337e643aca31989187ab98ff5616
+Subproject commit f74dd87156e98b26a067c759b43b1c0648796d5f