diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index de138723..6594fb31 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -25,6 +25,14 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
+    - name: Install libhdf5 (macOS)
+      # See https://stackoverflow.com/questions/73029883
+      if: runner.os == 'macOS'
+      run: |
+        brew install hdf5
+        brew install c-blosc
+        export HDF5_DIR=/opt/homebrew/opt/hdf5
+        export BLOSC_DIR=/opt/homebrew/opt/c-blosc
     - name: Upgrade pip
       run: python -m pip install --upgrade pip
     - name: Build and install flydra_core