diff --git a/autobuild/Mac.sh b/autobuild/Mac.sh
index b37c09fbc..2230f5004 100755
--- a/autobuild/Mac.sh
+++ b/autobuild/Mac.sh
@@ -2,7 +2,7 @@
 export HOMEBREW_NO_INSTALL_CLEANUP=1
 export HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1
 brew update
-brew install llvm@16 ninja
+brew install llvm@17 ninja
 echo "CMAKE_CONFIGURE_ARGS=-DCMAKE_OSX_DEPLOYMENT_TARGET=10.9 -DCMAKE_TOOLCHAIN_FILE=$PWD/autobuild/clang16_mac.cmake" >> $GITHUB_ENV
 
 cat autobuild/mac_any_cast.h >> src/C4InteractiveThread.h