diff --git a/scripts/core_build.sh b/scripts/core_build.sh
index 950a494e4c..0e93e63dbf 100755
--- a/scripts/core_build.sh
+++ b/scripts/core_build.sh
@@ -193,13 +193,25 @@ conan remote add default-conan-local https://milvus01.jfrog.io/artifactory/api/c
 unameOut="$(uname -s)"
 case "${unameOut}" in
   Darwin*)
-    llvm_prefix="$(brew --prefix llvm)"
+    # detect llvm version by valid list
+    for llvm_version in 15 14 NOT_FOUND ; do
+      if brew ls --versions llvm@${llvm_version} > /dev/null; then
+        break
+      fi
+    done
+    if [ "${llvm_version}" = "NOT_FOUND" ] ; then
+      echo "valid llvm(14 or 15) not installed"
+      exit 1
+    fi
+    llvm_prefix="$(brew --prefix llvm@${llvm_version})"
     export CLANG_TOOLS_PATH="${llvm_prefix}/bin"
     export CC="${llvm_prefix}/bin/clang"
     export CXX="${llvm_prefix}/bin/clang++"
-    export CFLAGS=-Wno-deprecated-declarations
-    export CXXFLAGS=-Wno-deprecated-declarations
-    conan install ${CPP_SRC_DIR} --install-folder conan --build=missing -s compiler=clang -s compiler.version=15 -s compiler.libcxx=libc++ -s compiler.cppstd=17 || { echo 'conan install failed'; exit 1; }
+    export CFLAGS="-Wno-deprecated-declarations -I$(brew --prefix libomp)/include"
+    export CXXFLAGS=${CFLAGS}
+    export LDFLAGS="-L$(brew --prefix libomp)/lib"
+
+    conan install ${CPP_SRC_DIR} --install-folder conan --build=missing -s compiler=clang -s compiler.version=${llvm_version} -s compiler.libcxx=libc++ -s compiler.cppstd=17 || { echo 'conan install failed'; exit 1; }
     ;;
   Linux*)
     echo "Running on ${OS_NAME}"
diff --git a/scripts/install_deps.sh b/scripts/install_deps.sh
index 93a81669d7..bfceeb26e6 100755
--- a/scripts/install_deps.sh
+++ b/scripts/install_deps.sh
@@ -50,7 +50,7 @@ function install_linux_deps() {
 
 function install_mac_deps() {
   sudo xcode-select --install > /dev/null 2>&1
-  brew install libomp ninja cmake llvm ccache grep
+  brew install libomp ninja cmake llvm@15 ccache grep
   export PATH="/usr/local/opt/grep/libexec/gnubin:$PATH"
   brew update && brew upgrade && brew cleanup
 
@@ -60,14 +60,6 @@ function install_mac_deps() {
     brew install openssl
     brew install librdkafka
     brew install pkg-config
-    sudo mkdir /usr/local/include
-    sudo mkdir /usr/local/opt
-    sudo ln -s "$(brew --prefix llvm)" "/usr/local/opt/llvm"
-    sudo ln -s "$(brew --prefix libomp)/include/omp.h" "/usr/local/include/omp.h"
-    sudo ln -s "$(brew --prefix libomp)" "/usr/local/opt/libomp"
-    sudo ln -s "$(brew --prefix boost)/include/boost" "/usr/local/include/boost"
-    sudo ln -s "$(brew --prefix tbb)/include/tbb" "/usr/local/include/tbb"
-    sudo ln -s "$(brew --prefix tbb)/include/oneapi" "/usr/local/include/oneapi"
   fi
 }