diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cd535d4e6..e71df9aa6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,14 +27,6 @@ jobs:
           "pypy-3.8",
           "pypy-3.9",
         ]
-        # Python 3.9 is on macos-13 but not macos-latest (macos-14-arm64)
-        # https://github.com/actions/setup-python/issues/696#issuecomment-1637587760
-        exclude:
-          - { python-version: "3.8", os: "macos-latest", experimental: false }
-          - { python-version: "3.9", os: "macos-latest", experimental: false }
-        include:
-          - { python-version: "3.8", os: "macos-13", experimental: false }
-          - { python-version: "3.9", os: "macos-13", experimental: false }
       fail-fast: false
     steps:
     - uses: actions/checkout@v4
diff --git a/doc/conf.py b/doc/conf.py
index 1322a2f83..34ce385cb 100755
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -68,7 +68,7 @@
 graphviz_output_format = "png"  # 'svg'
 
 # The suffix of source filenames.
-source_suffix = ".rst"
+source_suffix = {".rst": "restructuredtext"}
 
 # The encoding of source files.
 # source_encoding = 'utf-8-sig'