diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index a0fdc59..d4b8332 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -84,7 +84,6 @@ jobs:
         run: |
           brew update
           brew install xz automake binutils coreutils curl gettext libtool openssl pkgconfig
-          brew upgrade
       - name: build
         run: ./mac/ci-build.sh
       - uses: ncipollo/release-action@v1
--
libgit2 0.21.2