diff --git a/.github/workflows/continuous-building.yml b/.github/workflows/continuous-building.yml
index 26271c9a..19486da7 100644
--- a/.github/workflows/continuous-building.yml
+++ b/.github/workflows/continuous-building.yml
@@ -14,7 +14,7 @@ jobs:
         os: 
           - ubuntu-22.04
           - ubuntu-24.04
-          - macos-13
+          - macos-14
           - windows-2022
         use-asan: 
           - YES
diff --git a/build-osx.sh b/build-osx.sh
index addfb72b..de923582 100755
--- a/build-osx.sh
+++ b/build-osx.sh
@@ -34,9 +34,9 @@ TBB_CMAKE_DIR="$(pwd)/${TBB_DIR_NAME}/lib/cmake"
 
 # check USE_ASAN environment variable (see cmake.yml)
 if [ "$USE_ASAN" == "YES" ]; then
-  cmake .. -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_PREFIX_PATH="$EMBREE_CMAKE_DIR;$TBB_CMAKE_DIR" -DENABLE_LIGHTPREVIEW=YES -DERICWTOOLS_ASAN=YES
+  cmake .. -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_PREFIX_PATH="$EMBREE_CMAKE_DIR;$TBB_CMAKE_DIR" -DCMAKE_OSX_ARCHITECTURES=x86_64 -DENABLE_LIGHTPREVIEW=YES -DERICWTOOLS_ASAN=YES
 else
-  cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="$EMBREE_CMAKE_DIR;$TBB_CMAKE_DIR"
+  cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="$EMBREE_CMAKE_DIR;$TBB_CMAKE_DIR" -DCMAKE_OSX_ARCHITECTURES=x86_64
 fi
 make -j8 package || exit 1