diff --git a/.github/workflows/manual.yml b/.github/workflows/manual.yml
index 29d7249..bd180d5 100644
--- a/.github/workflows/manual.yml
+++ b/.github/workflows/manual.yml
@@ -18,9 +18,9 @@ jobs:
     strategy:
       matrix:
         sys:
-          - { os: windows-latest, shell: 'msys2 {0}' }
+#          - { os: windows-latest, shell: 'msys2 {0}' }
           - { os: ubuntu-latest,  shell: bash  }
-          - { os: macos-latest,   shell: bash  }
+#          - { os: macos-latest,   shell: bash  }
     defaults:
       run:
         shell: ${{ matrix.sys.shell }}