diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 53a56e6..0083d93 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -6,10 +6,7 @@ jobs:
   build:
 
     name: "build (${{ matrix.runs_on }}, ${{ matrix.python }})"
-    defaults:
-      run:
-        shell: ${{ matrix.run_wrapper || 'bash --noprofile --norc -eo pipefail {0}' }}
-    runs-on: ${{ matrix.runs_on || 'macos-latest' }}
+    runs-on: ${{ matrix.runs_on }}
     strategy:
       matrix:
         include:
@@ -22,10 +19,8 @@ jobs:
           - runs_on: macos-latest
             python: "3.10"
           - runs_on: apple-silicon-m1
-            run_wrapper: arch -arm64 bash --noprofile --norc -eo pipefail {0}
             python: "3.9.11"
           - runs_on: apple-silicon-m1
-            run_wrapper: arch -arm64 bash --noprofile --norc -eo pipefail {0}
             python: "3.10.3"
     steps:
     - uses: actions/checkout@v2