diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1f8393e08..95b46f004 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,13 +8,12 @@ on:
   pull_request:
     branches:
       - dev
-      - newlocallab
   release:
     types:
       - created
 jobs:
   build:
-    runs-on: macos-10.15
+    runs-on: macos-11
     steps:
       - uses: actions/checkout@v2
       - name: Install dependencies
@@ -23,7 +22,7 @@ jobs:
            mkdir build
            date +%s > build/stamp
            brew uninstall --ignore-dependencies libtiff
-           brew install libtiff gtk+3 gtkmm3 gtk-mac-integration adwaita-icon-theme libsigc++@2 little-cms2 libiptcdata fftw lensfun expat pkgconfig libomp shared-mime-info | tee -a depslog
+           brew install libtiff gtk+3 gtkmm3 gtk-mac-integration adwaita-icon-theme libsigc++@2 little-cms2 libiptcdata fftw lensfun expat pkgconfig llvm shared-mime-info | tee -a depslog
            date -u
            echo "----====Pourage====----"
            cat depslog | grep Pouring
@@ -65,6 +64,7 @@ jobs:
             -DCMAKE_RANLIB=/usr/bin/ranlib \
             -DCMAKE_OSX_DEPLOYMENT_TARGET=10.15 \
             ..
+            curl -L https://github.com/Homebrew/homebrew-core/raw/679923b4eb48a8dc7ecc1f05d06063cd79b3fc00/Formula/libomp.rb -o libomp.rb && brew install libomp.rb
             zsh -c 'echo "Configured in $(printf "%0.2f" $(($[$(date +%s)-$(cat configstamp)]/$((60.))))) minutes"'
       - name: Compile RawTherapee
         run: |