diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 0103d1b..107be60 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -75,7 +75,7 @@ jobs:
         uses: joerick/cibuildwheel@v1.11.0
         env:
           MACOSX_DEPLOYMENT_TARGET: "10.15"
-          CIBW_BUILD: "{ cp,pp }{ 37,38,39 }-*"
+          CIBW_BUILD: "{cp,pp}{37,38,39}-*"
           CIBW_SKIP: "*-win32 *-manylinux_i686"
           CIBW_MANYLINUX_X86_64_IMAGE: "manylinux2014"