diff --git a/.github/scripts/set-conda-test-matrix.py b/.github/scripts/set-conda-test-matrix.py
index 954480cb0..2e0b95688 100644
--- a/.github/scripts/set-conda-test-matrix.py
+++ b/.github/scripts/set-conda-test-matrix.py
@@ -10,10 +10,8 @@
          'win': 'windows',
          }
 
-blas_implementations = ['unset', 'Generic', 'OpenBLAS', 'Intel10_64lp']
-
-combinations = {'ubuntu': blas_implementations,
-                'macos': blas_implementations,
+combinations = {'ubuntu': ['unset', 'Generic', 'OpenBLAS', 'Intel10_64lp'],
+                'macos': ['unset', 'Generic', 'OpenBLAS'],
                 'windows': ['unset', 'Intel10_64lp'],
                }
 
diff --git a/.github/workflows/os-blas-test-matrix.yml b/.github/workflows/os-blas-test-matrix.yml
index 4b0bb0394..2b8790395 100644
--- a/.github/workflows/os-blas-test-matrix.yml
+++ b/.github/workflows/os-blas-test-matrix.yml
@@ -226,7 +226,7 @@ jobs:
           sudo apt-get -y update
           case ${{ matrix.blas_lib }} in
             Generic )  sudo apt-get -y install libblas3 liblapack3 ;;
-            unset | OpenBLAS        ) sudo apt-get -y install libopenblas-base ;;
+            unset | OpenBLAS ) sudo apt-get -y install libopenblas0 ;;
             *)
               echo "BLAS ${{ matrix.blas_lib }} not supported for wheels on Ubuntu"
               exit 1 ;;