diff --git a/.github/workflows/android-app-build.yml b/.github/workflows/android-app-build.yml
index bc140c10..2012f200 100644
--- a/.github/workflows/android-app-build.yml
+++ b/.github/workflows/android-app-build.yml
@@ -37,7 +37,7 @@ jobs:
       matrix:
         android-api: [26, 34]
         android-abi: [x86_64]
-        os: [macos-12, ubuntu-22.04]
+        os: [macos-13, ubuntu-22.04]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v4
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6c9b2ad6..7844a7d9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -125,7 +125,7 @@ jobs:
           ./tests/interpreter-test
 
   macos:
-    runs-on: macos-12
+    runs-on: macos-13
     steps:
       - uses: actions/checkout@v3
       - name: Bootstrap
@@ -163,7 +163,7 @@ jobs:
           ANDROID_ABI=arm64-v8a ANDROID_NDK_HOME=$(find $ANDROID_HOME/ndk -name "26.*") ./build-commissioner-libs.sh
 
   java-binding:
-    runs-on: macos-12
+    runs-on: macos-13
     steps:
       - uses: actions/checkout@v3
       - name: Bootstrap
diff --git a/android/build-commissioner-libs.sh b/android/build-commissioner-libs.sh
index ed9c40e9..651a0946 100755
--- a/android/build-commissioner-libs.sh
+++ b/android/build-commissioner-libs.sh
@@ -27,7 +27,7 @@
 #  POSSIBILITY OF SUCH DAMAGE.
 #
 
-readonly CUR_DIR="$(dirname "$(realpath -s "$0")")"
+readonly CUR_DIR="$(dirname "$(realpath "$0")")"
 
 set -e
 
diff --git a/script/bootstrap.sh b/script/bootstrap.sh
index f817cba5..86933324 100755
--- a/script/bootstrap.sh
+++ b/script/bootstrap.sh
@@ -105,7 +105,6 @@ if [ "$(uname)" = "Linux" ]; then
         echo "Did you forget to add '/usr/bin' to beginning of your PATH?"
         exit 1
     }
-
 elif [ "$(uname)" = "Darwin" ]; then
     echo "OS is Darwin"
 
@@ -115,7 +114,7 @@ elif [ "$(uname)" = "Darwin" ]; then
                  readline \
                  cmake \
                  ninja \
-                 swig@4 \
+                 swig  \
                  lcov && true
 
     brew install llvm@14 && \
@@ -130,15 +129,12 @@ elif [ "$(uname)" = "Darwin" ]; then
         brew unlink cmake
         brew install cmake --HEAD
     }
-
-    ## Install coreutils for realpath
-    brew install coreutils
 else
     echo "platform $(uname) is not fully supported"
     exit 1
 fi
 
-readonly CUR_DIR="$(dirname "$(realpath -s "$0")")"
+readonly CUR_DIR="$(dirname "$(realpath "$0")")"
 
 cd "${CUR_DIR}/.."
 if [ "${WITH_CCM}" = "1" ]; then