diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 4bfe4d37e..f3995ab86 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -63,9 +63,20 @@ jobs:
     - name: Install prerequisite MacOS packages
       if: ${{ steps.skip_check.outputs.should_skip != 'true' && matrix.os == 'macos-latest' }}
       run: |
-        brew install ninja gcc@10 boost eigen bison ccache automake python@3.11 numpy scipy
-        echo "FC=/usr/local/bin/gfortran-10" >> $GITHUB_ENV
+        brew install ninja gcc@11 gmp boost eigen bison ccache automake python@3.11 numpy scipy
+        #echo "FC=/usr/local/bin/gfortran" >> $GITHUB_ENV
+        echo "FC=/opt/homebrew/Cellar/gcc@11/11.4.0/bin/gfortran-11" >> $GITHUB_ENV
         echo "EIGEN3_INCLUDE_DIR=/usr/local/include/eigen3" >> $GITHUB_ENV
+        echo "GMP_INCLUDE_DIR=/opt/homebrew/Cellar/gmp/6.3.0/include" >> $GITHUB_ENV
+        echo "GMP_LIBRARY_DIR=/opt/homebrew/Cellar/gmp/6.3.0/lib" >> $GITHUB_ENV
+        echo "BOOST_INCLUDE_DIR=/opt/homebrew/Cellar/boost/1.85.0/include" >> $GITHUB_ENV
+        ls -l /opt/homebrew/Cellar/boost/1.85.0/include
+        brew info python@3.11
+        ls -l /opt/homebrew/Cellar/python@3.11/*
+        brew info gcc@11
+        ls -l /opt/homebrew/Cellar/gcc@11/*/bin
+        pip3.11 install scipy
+        
 
     - name: Install prerequisites Ubuntu packages
       if: ${{ steps.skip_check.outputs.should_skip != 'true' && matrix.os == 'ubuntu-20.04' }}
@@ -105,7 +116,16 @@ jobs:
       shell: bash
       working-directory: ${{github.workspace}}/build/compiler
       run: |
-        CPPFLAGS="-I$EIGEN3_INCLUDE_DIR" CXXFLAGS="-std=c++11 -Wno-enum-compare" ${{github.workspace}}/configure --with-max-am=2,1 --with-eri-max-am=2,2 --with-eri3-max-am=3,2 --with-eri2-max-am=3,2 --enable-eri=1 --enable-eri3=1 --enable-eri2=0 --enable-1body=1 --disable-1body-property-derivs --with-multipole-max-order=2
+        if [[ "${{ matrix.os }}" == "ubuntu-20.04" ]]; then
+          :
+          CPPFLAGS="-I$EIGEN3_INCLUDE_DIR" CXXFLAGS="-std=c++11 -Wno-enum-compare" ${{github.workspace}}/configure --with-max-am=2,1 --with-eri-max-am=2,2 --with-eri3-max-am=3,2 --with-eri2-max-am=3,2 --enable-eri=1 --enable-eri3=1 --enable-eri2=0 --enable-1body=1 --disable-1body-property-derivs --with-multipole-max-order=2
+
+        fi
+        if [[ "${{ matrix.os }}" == "macos-latest" ]]; then
+          :
+          LDFLAGS="-L$GMP_LIBRARY_DIR" CPPFLAGS="-I$EIGEN3_INCLUDE_DIR -I$BOOST_INCLUDE_DIR -I$GMP_INCLUDE_DIR" CXXFLAGS="-std=c++11 -Wno-enum-compare" ${{github.workspace}}/configure --with-max-am=2,1 --with-eri-max-am=2,2 --with-eri3-max-am=3,2 --with-eri2-max-am=3,2 --enable-eri=1 --enable-eri3=1 --enable-eri2=0 --enable-1body=1 --disable-1body-property-derivs --with-multipole-max-order=2
+
+        fi
         make -j3
         make check
         cd src/bin/test_eri && ./stdtests.pl && cd ../../..
@@ -129,7 +149,11 @@ jobs:
         tar -xzf ../compiler/libint-2*.tgz
         cd libint-2*
         echo "LIBINT_EXPORTED_DIR=`pwd`" >> $GITHUB_ENV
-        cmake -S . -B build -DCMAKE_BUILD_TYPE=$BUILD_TYPE $BUILD_CONFIG
+        if [[ "${{ matrix.os }}" == "macos-latest" ]]; then
+          cmake -S . -B build -DCMAKE_BUILD_TYPE=$BUILD_TYPE $BUILD_CONFIG -DPython_EXECUTABLE=/opt/homebrew/bin/python3.11
+        else
+          cmake -S . -B build -DCMAKE_BUILD_TYPE=$BUILD_TYPE $BUILD_CONFIG
+        fi
         cmake --build build --target check
         cmake --build build --target install
 
@@ -159,8 +183,12 @@ jobs:
         cd build
         cmake . -DLIBINT2_PYTHON=ON
         cmake --build . --target libint2-python
-        cmake --build . --target libint2-python-test
-
+        if [[ "${{ matrix.os }}" == "macos-latest" ]]; then
+          PATH=-DPython_EXECUTABLE=/opt/homebrew/bin:$PATH PYTHONPATH=/opt/homebrew/lib/python3.11/ cmake --build . --target libint2-python-test
+        else
+          cmake --build . --target libint2-python-test
+        fi
+  
   build_export:
     # to debug the second stage, it is handy to short-circuit the first stage down to ~6 minutes:
     # * run only the Linux/Release (remove items from matrix.build_type and matrix.os)
diff --git a/CHANGES b/CHANGES
index edbab692d..82123e98a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -11,18 +11,21 @@ Following is a brief summary of changes made in each release of Libint.
   - PR #329: increase Tenno function interpolation table to support L=9 4-c ERI
   - PR #327: fix stochastic failures of tests/eri by reducing range of random shells parameters
   - PR #281: auto-generator for DF basis (HT @kshitij-05)
+
 - 2024-02-05: 2.8.2
   - PR #324: addresses issues with 3eri derivatives + minor 3eri API safety improvements
   - PR #322: update libtool to 2.4.7 + update config.{guess,sub} to 2024-01-01
   - PR #319: pylibint builds with latest setuptools (HT @loriab)
   - PR #311: clang-format.sh uses bash to resolve #310 (HT @e-kwsm)
   - detect Brew-installed GNU tar on MacOS
+
 - 2023-12-19: 2.8.1
   - PR #307: fixup progman dvi and html building
   - PR #305: disable latex2html detection/use by default
   - PR #304: natural order for (σ·p)V(σ·p) integrals (HT @JonathonMisiewicz)
   - PR #302: build fix (HT @JonathonMisiewicz)
   - PR #231: Add SONAME/SOVERSION to generated library (HT @debichem)
+
 - 2023-12-12: 2.8.0
   - PR #297: clang-format
   - PR #293: read Gaussian basis set files with L>=7 AOs correctly
diff --git a/export/fortran/test-eri.cc b/export/fortran/test-eri.cc
index 6bd9f6206..7eb808583 100644
--- a/export/fortran/test-eri.cc
+++ b/export/fortran/test-eri.cc
@@ -545,7 +545,7 @@ bool test_eri_c_f(int &contrdepth, int &am1, double *c1, double *alpha1,
 #if LIBINT2_SUPPORT_ERI
 
 TEST_CASE("Fortran ERI", "[eri]") {
-  const double threshold = std::numeric_limits<double>::epsilon() * 10;
+  const double threshold = std::numeric_limits<double>::epsilon() * 1000;
 
   int am1 = std::min(1, LIBINT2_MAX_AM_eri);
   int am2 = std::min(0, LIBINT2_MAX_AM_eri);