diff --git a/.github/workflows/build_python_wheels.yml b/.github/workflows/build_python_wheels.yml
index ad9f46a8c..05d1cdb0c 100644
--- a/.github/workflows/build_python_wheels.yml
+++ b/.github/workflows/build_python_wheels.yml
@@ -55,7 +55,8 @@ jobs:
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.15.0
         env:
-          CIBW_BUILD: ${{ matrix.python-version }}-${{ matrix.buildplat[1] }}
+          CIBW_BUILD: ${{ matrix.python-version }}_${{ matrix.buildplat[1] }}
+          CIBW_ARCHS_LINUX: "x86_64" # don't build for i686
           CIBW_ENVIRONMENT: 'PATH="$HOME/.cargo/bin:$HOME/.foundry/bin:$HOME/.cargo/env:$PATH" CARGO_TERM_COLOR="always"'
           CIBW_ENVIRONMENT_WINDOWS: 'PATH="$UserProfile\.cargo\bin;$UserProfile\.foundry\bin;$UserProfile\.cargo\env;$PATH"'
           CIBW_BEFORE_ALL_LINUX: >