diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index d982165..1847d98 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -14,8 +14,6 @@ jobs:
             os: ubuntu-18.04
           - name: Ubuntu 20.04
             os: ubuntu-20.04
-          - name: Mac 10.15
-            os: macos-10.15
           - name: Windows 2019
             os: windows-2019
         cmake-build-type: [Debug, Release]