diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 82dfc03200fa35c8637b464549d0b0288b4de1a4..32563126fe8fbc3c0e23f572b58f17d928c62c0a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,7 +16,7 @@ jobs:
         os:
           - 'ubuntu-20.04'
           - 'windows-2019'  # need to be fixed, see: https://github.com/opendilab/treevalue/issues/41
-          - 'macos-10.15'
+          - 'macos-11'
         python-version:
           - '3.7'
           - '3.8'