diff --git a/.cirrus.yml b/.cirrus.yml
index 99c4e602..3970103e 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -9,11 +9,12 @@ cirrus_wheels_macos_arm64_task:
   env:
     PATH: /opt/homebrew/opt/python@3.10/bin:$PATH
     CIBW_ARCHS_MACOS: arm64
+    CIBW_TEST_COMMAND: "python -m flint.test"
   install_pre_requirements_script:
     - python3 -m venv venv
     - venv/bin/pip install --upgrade pip
     - venv/bin/pip install cibuildwheel==2.16.2
   run_cibuildwheel_script:
-    - bin/cibw.sh
+    - venv/bin/cibuildwheel --platform macos
   wheels_artifacts:
     path: "wheelhouse/*"
diff --git a/bin/cibw.sh b/bin/cibw.sh
deleted file mode 100755
index 9e074891..00000000
--- a/bin/cibw.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/usr/bin/env bash
-#
-# This script can be used to test cibuildwheel locally on OSX/Linux
-#
-# It is also worth commenting out the BEFORE_ALL line to build GMP etc after you have
-# built those once because that is by far the slowest step.
-#
-
-rm -f wheelhouse/*
-
-# export CIBW_ARCHS_MACOS="x86_64"
-export CIBW_ARCHS_MACOS="arm64"
-
-export CIBW_TEST_COMMAND="python -m flint.test"  # override setting in pyproject.toml
-
-# cibuildwheel --platform linux
-# cibuildwheel --platform windows
-venv/bin/cibuildwheel --platform macos