diff --git a/.github/workflows/build_all.yml b/.github/workflows/build_all.yml
index 96c14ba1..3431eaf5 100644
--- a/.github/workflows/build_all.yml
+++ b/.github/workflows/build_all.yml
@@ -14,7 +14,7 @@ jobs:
     name: Build All
     strategy:
       matrix:
-        os: [ubuntu-20.04, macos-13, windows-2019]
+        os: [ubuntu-20.04, macos-12, windows-2019]
     runs-on: ${{ matrix.os }}
     defaults:
       run: