diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c20015b..219da3e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,18 +23,14 @@ jobs:
       - uses: actions/setup-python@v1
         with:
           python-version: ${{ matrix.python-version }}
-      # https://github.com/actions/cache/blob/main/examples.md#using-a-script-to-get-cache-location
-      - id: pip-cache
-        run: python -c "from pip._internal.locations import USER_CACHE_DIR; print('::set-output name=dir::' + USER_CACHE_DIR)"
-      - uses: actions/cache@v1
-        with:
-          path: ${{ steps.pip-cache.outputs.dir }}
-          key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.py') }}
-          restore-keys: |
-            ${{ runner.os }}-pip-
+          cache: pip
       - run: pip install .[test]
       - run: pip install "myst-parser${{ matrix.myst-parser-version }}"
+      # Run pytest
       - run: pytest -vv --cov sphinxcontrib
+      # Also try building the docs in the docs directory
+      - run: pip install sphinx_rtd_theme
+      - run: cd docs && make dirhtml
       - env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: coveralls --service=github
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 7c70b64..66ede39 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -11,15 +11,7 @@ jobs:
       with:
         python-version: 3.6
         architecture: x64
-    # https://github.com/actions/cache/blob/main/examples.md#using-a-script-to-get-cache-location
-    - id: pip-cache
-      run: python -c "from pip._internal.locations import USER_CACHE_DIR; print('::set-output name=dir::' + USER_CACHE_DIR)"
-    - uses: actions/cache@v1
-      with:
-        path: ${{ steps.pip-cache.outputs.dir }}
-        key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.py') }}
-        restore-keys: |
-          ${{ runner.os }}-pip-
+        cache: pip
     - run: pip install .[test]
     - run: flake8 .
     - run: isort .
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 75bca55..4a2b06e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [0.3.1] - 2022-08-03
+
+- Fix markdown related directives to work with myst-parser 0.18.0
+
 ## [0.3.0] - 2022-07-26
 
 ### Added
diff --git a/setup.py b/setup.py
index 856530a..0c296dd 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 
 setup(
     name='sphinxcontrib-opendataservices',
-    version='0.3.0',
+    version='0.3.1',
     author='Open Data Services',
     author_email='code@opendataservices.coop',
     packages=['sphinxcontrib'],
diff --git a/sphinxcontrib/opendataservices.py b/sphinxcontrib/opendataservices.py
index 3759604..f95526e 100644
--- a/sphinxcontrib/opendataservices.py
+++ b/sphinxcontrib/opendataservices.py
@@ -27,10 +27,12 @@
     from myst_parser.parsers.mdit import create_md_parser
 
     # to_docutils was removed in myst-parser>=0.18.
-    def to_docutils(text):
+    def to_docutils(text, document=None):
         # Code is similar to MystParser.parse and myst_parser.parsers.docutils_.Parser.parse.
         parser = create_md_parser(MdParserConfig(), SphinxRenderer)
-        parser.options["document"] = make_document()
+        if not document:
+            document = make_document()
+        parser.options["document"] = document
         return parser.render(text)
 
 
@@ -94,14 +96,14 @@ def run(self):
             title = filename
         pointed = resolve_pointer(json_obj, self.options['jsonpointer'])
         # Remove the items mentioned in exclude
-        if(self.options.get('exclude')):
+        if self.options.get('exclude'):
             for item in self.options['exclude'].split(","):
                 try:
                     del pointed[item.strip()]
                 except KeyError:
                     pass
 
-        if(self.options.get('include_only')):
+        if self.options.get('include_only'):
             for node in list(pointed):
                 if not (node in self.options.get('include_only')):
                     del pointed[node]
@@ -181,13 +183,13 @@ def get_csv_data(self):
         with open(abspath) as fp:
             json_obj = json.load(fp, object_pairs_hook=OrderedDict)
         pointed = resolve_pointer(json_obj, self.options['jsonpointer'])
-        if(self.options.get('exclude')):
+        if self.options.get('exclude'):
             for item in self.options['exclude'].split(","):
                 try:
                     del pointed[item.strip()]
                 except KeyError:
                     pass
-        if(self.options.get('include_only')):
+        if self.options.get('include_only'):
             for node in list(pointed):
                 if not (node in self.options.get('include_only')):
                     del pointed[node]