From 7bd8830accf6923f6a44e0061fd79b46c5f0de50 Mon Sep 17 00:00:00 2001
From: Alex Nitz <alex.nitz@gmail.com>
Date: Fri, 6 Oct 2023 11:39:19 -0400
Subject: [PATCH] Update mac-test.yml

---
 .github/workflows/mac-test.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/mac-test.yml b/.github/workflows/mac-test.yml
index 5853e5353ca..43ca3d4a486 100644
--- a/.github/workflows/mac-test.yml
+++ b/.github/workflows/mac-test.yml
@@ -21,7 +21,7 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
     - run: |
-        brew install fftw openssl
+        brew install fftw openssl gsl
         pip install --upgrade pip setuptools "tox<4.0.0"
     - name: run basic pycbc test suite
       run: |