diff --git a/.github/workflows/build_libnode.yml b/.github/workflows/build_libnode.yml
index 0d5f65e..97dfbdb 100644
--- a/.github/workflows/build_libnode.yml
+++ b/.github/workflows/build_libnode.yml
@@ -15,11 +15,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-11, windows-2019, ubuntu-18.04]
+        os: [macos-10.15, windows-2019, ubuntu-18.04]
         arch: [x86, x64, arm64]
         small_icu: [0, 1]
         exclude:
-          - os: macos-11
+          - os: macos-10.15
             arch: x86
           - os: ubuntu-18.04
             arch: x86