diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0a3b6d7..277f593 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -99,6 +99,10 @@ jobs:
       # https://github.com/google/go-tpm-tools#openssl-errors-when-building-simulator
       run: choco install openssl
       shell: bash
+    - name: Install Mac packages
+      if: runner.os == 'macOS'
+      run: |
+        brew install openssl
     - name: Install Libsodium on Windows
       if: runner.os == 'Windows'
       # this is a dependency of the ruby rbnacl library