diff --git a/.github/workflows/gh_actions.yml b/.github/workflows/gh_actions.yml
index 055bfb6..7501c21 100644
--- a/.github/workflows/gh_actions.yml
+++ b/.github/workflows/gh_actions.yml
@@ -158,7 +158,7 @@ jobs:
       runs-on: ${{ matrix.os }}
       strategy:
         matrix:
-          os: [ubuntu-latest, windows-latest, macos-10.15]
+          os: [ubuntu-latest, windows-latest, macos-latest]
           python-version: ['3.9']
       steps:
         - uses: actions/checkout@v4
diff --git a/plenopticam/scripts/bundling/pyinst2app_gh.sh b/plenopticam/scripts/bundling/pyinst2app_gh.sh
index ab4aeec..6384a42 100755
--- a/plenopticam/scripts/bundling/pyinst2app_gh.sh
+++ b/plenopticam/scripts/bundling/pyinst2app_gh.sh
@@ -8,6 +8,10 @@ sp_path=$(python3 -c "import sysconfig; print(sysconfig.get_path('purelib'))")
 echo "$sp_path"/imageio/
 echo $(find /usr /opt /lib /lib64 /usr/local -type f -name "libtk*.dylib" 2>/dev/null)
 
+# link tk/tcl libs
+ln -s /usr/local/Cellar/tcl-tk/$version/lib/libtcl8.6.dylib /usr/local/lib/libtcl8.6.dylib
+ln -s /usr/local/Cellar/tcl-tk/$version/lib/libtk8.6.dylib /usr/local/lib/libtk8.6.dylib
+
 # run pyinstaller with provided options
 pyinstaller plenopticam/gui/top_level.py \
   --onefile \