diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8f93ba129b98939776ef0b469cdc098bc765fef8..25e262d074551a616c5d65ad5874871afb936137 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -59,6 +59,8 @@ jobs:
         -   uses: actions/checkout@v2
         -   name: "Main Script"
             run: |
+                sudo apt-get update
+                sudo apt-get install openmpi-bin libopenmpi-dev
                 CONDA_ENVIRONMENT=.test-conda-env-py3.yml
                 curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/master/ci-support.sh
                 . ci-support.sh