diff --git a/.github/workflows/build-test-pypi.yml b/.github/workflows/build-test-pypi.yml
index dda8e1f..ff620e8 100644
--- a/.github/workflows/build-test-pypi.yml
+++ b/.github/workflows/build-test-pypi.yml
@@ -76,6 +76,8 @@ jobs:
           # Will re-enable ARM64 once libebur128 pull request #131 is merged.
           # https://github.com/jiixyj/libebur128/pull/131
           #CIBW_ARCHS_WINDOWS: "auto ARM64"
+          CIBW_BEFORE_TEST_LINUX: sudo apt install libsndfile1
+          CIBW_BEFORE_TEST_MACOS: brew install libsndfile
           CIBW_BUILD: "cp${{ steps.pythonversion.outputs.value }}-*"
           CIBW_ENVIRONMENT: "SETUPTOOLS_SCM_PRETEND_VERSION=${{ github.event.inputs.overrideVersion }}"
           CIBW_TEST_COMMAND: pytest {package}/tests