diff --git a/.github/workflows/build_all.yml b/.github/workflows/build_all.yml
index a523a6d1..11004ba4 100644
--- a/.github/workflows/build_all.yml
+++ b/.github/workflows/build_all.yml
@@ -47,6 +47,8 @@ jobs:
           conda install octave
           brew link --force libomp
           brew install --cask lazarus
+          which gcc-ar-12
+          which gcc-ranlib-12
           echo "/Applications/Lazarus/" >> $GITHUB_PATH
       - name: Install dependencies (Windows only)
         if: ${{ runner.os == 'Windows' }}
@@ -156,7 +158,7 @@ jobs:
             make AR=g++ BACKEND=cudastatic USERLINKOPT='lib/libzmat.a -Wl,-Bstatic -lgomp -Wl,-Bdynamic'
             ldd ../bin/mcx
           elif [[ "$RUNNER_OS" == "macOS" ]]; then
-            mkdir build && cd build && cmake .. -DCMAKE_RANLIB="" && cat  && make VERBOSE=1 && cd ..
+            mkdir build && cd build && cmake .. -DCMAKE_AR="gcc-ar-12" -DCMAKE_RANLIB="gcc-ranlib-12" && cat  && make VERBOSE=1 && cd ..
             otool -L ../bin/mcx
             otool -L ../mcxlab/mcx.mex*
           else