diff --git a/.github/workflows/ci-linux_mac.yml b/.github/workflows/ci-linux_mac.yml
index 28fa40714b7..477c77c2335 100644
--- a/.github/workflows/ci-linux_mac.yml
+++ b/.github/workflows/ci-linux_mac.yml
@@ -143,7 +143,7 @@ jobs:
         if: ${{ startsWith(matrix.os, 'macos-') == true }}
         run: |
           set -e pipefail
-          brew install automake pkg-config
+          brew install automake
 
       - name: 'Configure libtiledb'
         id: configure
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4c2b00f2ae6..1685c7814f6 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -84,7 +84,7 @@ jobs:
         # v4 uses node 20 which is incompatible with the libc version of the manylinux image
         uses: actions/checkout@v3
       - name: 'Homebrew setup'
-        run: brew install automake pkg-config ninja
+        run: brew install automake ninja
         if: ${{ startsWith(matrix.os, 'macos-') == true }}
       - name: Export GitHub Actions cache variables
         uses: actions/github-script@v6
diff --git a/.github/workflows/unit-test-runs.yml b/.github/workflows/unit-test-runs.yml
index a56c4aca174..66520b8ed6c 100644
--- a/.github/workflows/unit-test-runs.yml
+++ b/.github/workflows/unit-test-runs.yml
@@ -21,7 +21,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: 'Homebrew setup'
-        run: brew install automake pkg-config
+        run: brew install automake
         if: ${{ startsWith(matrix.os, 'macos-') }}
 
       - name: Install Ninja