diff --git a/.github/workflows/build_wheels.yml b/.github/workflows/build_wheels.yml
index a15f3d5..f95f6b4 100644
--- a/.github/workflows/build_wheels.yml
+++ b/.github/workflows/build_wheels.yml
@@ -8,8 +8,8 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        # macos-13 is an intel runner, macos-14 is apple silicon
-        os: [macos-13, macos-14]
+#        os: [ubuntu-latest, macos-13, macos-14] currently only works on Linux
+        os: [ubuntu-latest]
 
     steps:
       - name: Checkout the repository
diff --git a/pyproject.toml b/pyproject.toml
index fade85c..f85e95e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,11 +12,3 @@ build-backend = "setuptools.build_meta"
 before-all = """
 yum -y install gmp-devel || apk add gmp-dev || apt-get install -y libgmp-dev || true
 """
-
-[tool.cibuildwheel.macos]
-before-all = """
-echo HELLO
-echo HELLO >&2
-brew install gmp
-export "CFLAGS=-I/usr/local/include -L/usr/local/lib -I/opt/homebrew/include -I/opt/homebrew/opt/gmp/include"
-"""