diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 109e4d9..c3d447f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -20,6 +20,11 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install build twine pillow
+      - name: Install Ubuntu dependencies
+        run: |
+          # NOTE: not the same OpenBLAS version as in upstream CI (I'm being lazy here)
+          sudo apt-get update
+          sudo apt-get install -y libopenblas-dev libatlas-base-dev liblapack-dev gfortran libgmp-dev libmpfr-dev ccache
       - name: Build sdist
         run: python -m build --sdist
       - name: Check the package