diff --git a/.github/workflows/workflow_macos.yml b/.github/workflows/workflow_macos.yml
index a6d764b..9f5ba75 100644
--- a/.github/workflows/workflow_macos.yml
+++ b/.github/workflows/workflow_macos.yml
@@ -25,7 +25,6 @@ jobs:
         }
         brew update
         checkPkgAndInstall pkg-config glew lz4 libjpeg libpng lzo qt@5 boost libusb libmypaint ccache jpeg-turbo ninja
-        brew unlink gcc@9
         checkPkgAndInstall opencv
         
     - uses: actions/cache@v1