diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index b229edbdd9..d6b60d2287 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -35,6 +35,8 @@ jobs:
         shell: bash -el {0}
         run: |
               brew install open-mpi
+              echo "List /opt/homebrew/lib"
+              echo "MPI_LIB_NRN_PATH=/opt/homebrew/lib/libmpi.dylib" >> $GITHUB_ENV
 
       - name: Install dependencies
         shell: bash -el {0}
@@ -53,14 +55,13 @@ jobs:
         shell: bash -el {0}
         run: |
           '${{ steps.cp310.outputs.python-path }}' -m pip install --verbose '.[opt, parallel, test, gui]'
-      - name: Set Env Variables
-        shell: bash -el {0}
-        run: |
-          if [ "${{ matrix.os }}" == "macos-latest" ]; then
-            echo "List /opt/homebrew/lib"
-            ls /opt/homebrew/lib
-            echo "MPI_LIB_NRN_PATH=/opt/homebrew/lib/libmpi.dylib" >> $GITHUB_ENV
-          fi;
+
+      # - name: Set Env Variables
+      #   if: contains(matrix.os, 'macos')
+      #   shell: bash -el {0}
+      #   run: |
+      #       echo "List /opt/homebrew/lib"
+      #       echo "MPI_LIB_NRN_PATH=/opt/homebrew/lib/libmpi.dylib" >> $GITHUB_ENV
       # - name: Run MPI application
       #   shell: bash -el {0}
       #   run: |