diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2e99abb..41bb78b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -40,22 +40,16 @@ jobs:
           - { os: ubuntu-latest, python: "3.10.11", install_libcxx: true }
           - { os: ubuntu-latest, python: "3.8.17", install_libcxx: false }
           - { os: ubuntu-latest, python: "3.8.17", install_libcxx: true }
-          - { os: ubuntu-20.04, python: "3.6.8", install_libcxx: false }
-          - { os: ubuntu-20.04, python: "3.6.8", install_libcxx: true }
-          - { os: ubuntu-latest, python: pypy-3.7, install_libcxx: false }
-          - { os: ubuntu-latest, python: pypy-3.7, install_libcxx: true }
+
           - { os: macos-latest, python: "3.12.0", install_libcxx: false }
           - { os: macos-latest, python: "3.11.6", install_libcxx: false }
           - { os: macos-latest, python: "3.10.11", install_libcxx: false }
           - { os: macos-latest, python: "3.8.17", install_libcxx: false }
-          - { os: macos-latest, python: "3.6.8", install_libcxx: false }
-          - { os: macos-latest, python: pypy-3.7, install_libcxx: false }
+
           - { os: windows-latest, python: "3.12.0", install_libcxx: false }
           - { os: windows-latest, python: "3.11.6", install_libcxx: false }
           - { os: windows-latest, python: "3.10.11", install_libcxx: false }
           - { os: windows-latest, python: "3.8.10", install_libcxx: false }
-          - { os: windows-latest, python: "3.6.8", install_libcxx: false }
-          - { os: windows-latest, python: pypy-3.7, install_libcxx: false }
 
     runs-on: ${{ matrix.os }}
     steps: