diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 483f271..a431a77 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -26,7 +26,11 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
+    - name: Install system dependencies
+      run: |
+        apt-get update
+        apt-get install -y libopenmpi-dev
+    - name: Install Python dependencies
       run: |
         python -m pip install --upgrade pip
         python -m pip install tox