diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 4270416..07770e7 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -21,7 +21,7 @@ jobs:
       CMP: ${{ matrix.cmp }}
     strategy:
       matrix:
-        os: [ubuntu-18.04, ubuntu-16.04, windows-2019]
+        os: [ubuntu-18.04, ubuntu-16.04, windows-2019, macos-10.15]
         cmp: [gcc]
         include:
           - cmp: vs2019
@@ -43,7 +43,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04, ubuntu-16.04, windows-2019]
+        os: [ubuntu-18.04, ubuntu-16.04, windows-2019, macos-10.15]
 
     steps:
     - uses: actions/checkout@v2