diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 864a72c4..e0d2cd96 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,7 +10,7 @@ jobs:
       matrix:
         config:
           - { os: ubuntu-20.04, platform: x64, cxx: g++-10, cc: gcc-10 }
-          - { os: macos-10.15, platform: x64, cxx: clang++, cc: clang }
+          - { os: macos-11, platform: x64, cxx: clang++, cc: clang }
           - { os: windows-2019, platform: x64, vs: msvc }
 
     runs-on: ${{ matrix.config.os }}