diff --git a/.github/workflows/pyinstaller.yml b/.github/workflows/pyinstaller.yml
index ab4ae7b9a4..5972bea483 100644
--- a/.github/workflows/pyinstaller.yml
+++ b/.github/workflows/pyinstaller.yml
@@ -36,9 +36,9 @@ jobs:
       matrix:
         include:
           # https://packaging.python.org/en/latest/specifications/platform-compatibility-tags/#platform-tag
-          # target=$(python -c 'import sysconfig; print(sysconfig.get_platform().replace("-", "_"))')
+          # target=$(python -c 'import sysconfig; print(sysconfig.get_platform().replace("-", "_").replace(".", "_"))')
           - { os: ubuntu-latest, target: linux_x86_64 }
-          - { os: macos-latest, target: macosx_10.9_universal2 }
+          - { os: macos-latest, target: macosx_10_9_universal2 }
           - { os: windows-latest, target: win_amd64 }
     defaults:
       run: