diff --git a/.github/workflows/CI.yaml b/.github/workflows/CI.yaml
index 94c2249b..eab745e0 100644
--- a/.github/workflows/CI.yaml
+++ b/.github/workflows/CI.yaml
@@ -14,7 +14,9 @@ jobs:
         python-version: [3.8, 3.11, pypy-3.7]
         include:
           - os: ubuntu-20.04
-            python-version: 3.6
+            python-version: [3.6, pypy-3.7]
+          - os: macos-latest
+            python-version: [pypy-3.8]
     steps:
       - uses: actions/checkout@v2
       - name: Setup Python environment