diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bcf08b5..4f24b25 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
       if: runner.os == 'macOS'
       # https://github.com/actions/virtual-environments/issues/2557
       run: |
-        sudo xcode-select -s "/Applications/Xcode_12.5.app" || ( ls /Applications; exit 1 )
+        sudo xcode-select -s "/Applications/Xcode_12.5.app" || sudo xcode-select -s "/Applications/Xcode_12.3.app" || ( ls /Applications; exit 1 )
         sudo rm -Rf /Library/Developer/CommandLineTools/SDKs/*
     - name: Build and publish locally
       run: ./mill -i __.publishLocal