diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5172e15ca..7b178b69c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -90,7 +90,7 @@ pkg_macOS:
   stage: pkg
   script:
     - ln -s ~/tarballs macOS/deps/
-    - make -C macOS
+    - arch -x86_64 make -C macOS
   cache:
     key: "$CI_JOB_NAME-$CI_COMMIT_REF_SLUG"
     paths:
diff --git a/macOS/build.sh b/macOS/build.sh
index 6725043ea..8be5b5551 100755
--- a/macOS/build.sh
+++ b/macOS/build.sh
@@ -29,7 +29,7 @@ CC=gcc-$GCC_VERSION
 CXX=g++-$GCC_VERSION
 
 # Set the number of threads
-NTHREADS=$(nproc)
+NTHREADS=$(sysctl -n hw.ncpu)
 
 # Set dependency directory
 LIB64="$ROOTDIR"/macOS/deps/lib64
@@ -168,7 +168,7 @@ make clean
   --with-gsl="$LIB64"/gsl \
   --with-matio="$LIB64"/matio \
   --with-slicot="$LIB64"/Slicot/with-underscore \
-  --with-matlab=/Applications/MATLAB_R2019b.app
+  --with-matlab=/Applications/MATLAB_R2022b.app
 make -j"$NTHREADS"
 cp -L  "$ROOTDIR"/mex/matlab/*                                       "$PKGFILES"/mex/matlab/maci64-9.4-9.13
 
diff --git a/preprocessor b/preprocessor
index 715ec9e4b..df7144525 160000
--- a/preprocessor
+++ b/preprocessor
@@ -1 +1 @@
-Subproject commit 715ec9e4bc681bf2e1d5236d0dc4098212ddf9e6
+Subproject commit df7144525d47489493590b062ee8cde9b9b5170e