diff --git a/.copier-answers.yaml b/.copier-answers.yaml
index 029cce9a..1fd09124 100644
--- a/.copier-answers.yaml
+++ b/.copier-answers.yaml
@@ -1,5 +1,5 @@
 # Changes here will be overwritten by Copier
-_commit: 2d2a72d
+_commit: 02f55bd
 _src_path: https://github.com/python-project-templates/base.git
 add_docs: false
 add_extension: python
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index d3c20910..f2915c3e 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -34,7 +34,7 @@ jobs:
           persist-credentials: false
 
       - name: Setup Python
-        uses: actions-ext/python/setup@c8228d827a81b9f8c808825328af361c45461ba3
+        uses: actions-ext/python/setup@c7ef9cbf13bc854a8d1422e9f8c6ee7a7ce1b911
         with:
           version: "3.11"
 
@@ -96,12 +96,12 @@ jobs:
         run: make dist
 
       - name: Test wheel
-        uses: actions-ext/python/test-wheel@c8228d827a81b9f8c808825328af361c45461ba3
+        uses: actions-ext/python/test-wheel@c7ef9cbf13bc854a8d1422e9f8c6ee7a7ce1b911
         with:
           module: yardang
 
       - name: Test source distribution
-        uses: actions-ext/python/test-sdist@c8228d827a81b9f8c808825328af361c45461ba3
+        uses: actions-ext/python/test-sdist@c7ef9cbf13bc854a8d1422e9f8c6ee7a7ce1b911
         with:
           module: yardang
 
diff --git a/docs/src/api.md b/docs/src/api.md
index 5a268f23..03f15f9a 100644
--- a/docs/src/api.md
+++ b/docs/src/api.md
@@ -41,9 +41,10 @@ Use `doxygenindex` to document all symbols from Doxygen XML:
 ```
 
 ```{toctree}
-:hidden:
-:maxdepth: 2
-
+---
+hidden:
+maxdepth: 2
+---
 /examples/cpp/docs/api
 ```
 
@@ -69,9 +70,10 @@ hand. `sphinx-rustdocgen` reads each crate listed under
 `doc-dir`, so the only thing to author is a toctree pointing at the result:
 
 ```{toctree}
-:hidden:
-:maxdepth: 2
-
+---
+hidden:
+maxdepth: 2
+---
 /api/calculator/lib
 ```
 
diff --git a/docs/src/home.md b/docs/src/home.md
index 84db071e..4e1d5cd0 100644
--- a/docs/src/home.md
+++ b/docs/src/home.md
@@ -13,32 +13,32 @@
 
 [`yardang`](https://www.britannica.com/science/yardang) makes building [Sphinx](https://www.sphinx-doc.org/en/master/) easy.
 
-::::{grid} 1 2 2 2
+::::\{grid} 1 2 2 2
 :margin: 4 4 0 0
 :gutter: 1
 
-:::{grid-item-card} {octicon}`table` Overview
+:::\{grid-item-card} {octicon}`table` Overview
 :link: docs/src/overview.html
 :link-type: url
 
 About `yardang` and how it works.
 :::
 
-:::{grid-item-card} {octicon}`download` Installation
+:::\{grid-item-card} {octicon}`download` Installation
 :link: docs/src/installation.html
 :link-type: url
 
 Install `yardang` from PyPI, Conda Forge, or build from source.
 :::
 
-:::{grid-item-card} {octicon}`gear` Configuration
+:::\{grid-item-card} {octicon}`gear` Configuration
 :link: docs/src/configuration.html
 :link-type: url
 
 Learn how to configure your repository.
 :::
 
-:::{grid-item-card} {octicon}`mark-github` Repository
+:::\{grid-item-card} {octicon}`mark-github` Repository
 :link: https://github.com/python-project-templates/yardang
 :link-type: url
 
diff --git a/pyproject.toml b/pyproject.toml
index b10b6851..f7964b78 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -73,7 +73,7 @@ develop = [
     "codespell",
     "hatchling",
     "mdformat",
-    "mdformat-frontmatter",
+    "mdformat-myst",
     "mdformat-tables>=1",
     "pytest",
     "pytest-cov",