diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 876a98b..c634676 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -1,17 +1,13 @@
 ---
 name: CI
-
 on:
   push:
     branches: [main]
-    tags:
-      - v*
+    tags: [v*]
   pull_request:
-
 jobs:
   pre-commit:
     runs-on: ubuntu-latest
-
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python
@@ -19,29 +15,24 @@ jobs:
         with:
           python-version: '3.10'
       - uses: pre-commit/action@v2.0.0
-
   tests:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         python-version: [3.7, '3.10']
         os: [ubuntu-latest, windows-latest]
-
     steps:
       - uses: actions/checkout@v2
-
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python-version }}
-
       - name: Installation (deps and package)
         # we install with flit --pth-file,
         # so that coverage will be recorded for the module
         run: |
           pip install flit
           flit install --deps=production --extras=test --pth-file
-
       - name: Run pytest
         run: |
           pytest --cov=mdformat_admon --cov-report=xml --cov-report=term-missing
@@ -54,26 +45,21 @@ jobs:
       #     flags: pytests
       #     file: ./coverage.xml
       #     fail_ci_if_error: false
-
   pre-commit-hook:
     runs-on: ubuntu-latest
-
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python
         uses: actions/setup-python@v2
         with:
           python-version: '3.10'
-
       - name: Installation (deps and package)
         run: |
           pip install pre-commit
           pip install .
-
       - name: run pre-commit with plugin
         run: |
           pre-commit run --config .pre-commit-test.yaml --all-files --verbose --show-diff-on-failure
-
   publish:
     name: Publish to PyPi
     needs: [pre-commit, tests, pre-commit-hook]
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 940ffa1..c979e30 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -27,15 +27,15 @@ repos:
       - id: trailing-whitespace
         exclude: tests/fixtures.*\.md
   - repo: https://github.com/pre-commit/pygrep-hooks
-    rev: v1.9.0
+    rev: v1.10.0
     hooks:
       - id: python-check-blanket-noqa
   - repo: https://github.com/timothycrosley/isort
-    rev: 5.11.4
+    rev: 5.12.0
     hooks:
       - id: isort
   - repo: https://github.com/psf/black
-    rev: 22.12.0
+    rev: 23.3.0
     hooks:
       - id: black
   - repo: https://github.com/pycqa/flake8
@@ -51,12 +51,11 @@ repos:
     rev: 0.7.16
     hooks:
       - id: mdformat
-        additional_dependencies:
-          - mdformat-mkdocs[recommended]
+        additional_dependencies: ['mdformat-mkdocs[recommended]']
         exclude: tests/.+\.md
         args: [--wrap=no]
   - repo: https://github.com/lyz-code/yamlfix/
-    rev: 1.1.1
+    rev: 1.9.0
     hooks:
       - id: yamlfix
         types_or: []
diff --git a/mdformat_mkdocs/plugin.py b/mdformat_mkdocs/plugin.py
index 88e5ca6..92dc0a5 100644
--- a/mdformat_mkdocs/plugin.py
+++ b/mdformat_mkdocs/plugin.py
@@ -14,7 +14,7 @@ def update_mdit(mdit: MarkdownIt) -> None:
     ...
 
 
-_RE_INDENT = re.compile(r"(?P<indent>\s*)(?P<content>.*)")
+_RE_INDENT = re.compile(r"(?P<indent>\s*)(?P<content>[^\s]?.*)")
 """Match `indent` and `content` against line`."""
 
 _RE_LIST_ITEM = re.compile(r"(?P<bullet>[\-\*\d\.]+)\s+(?P<item>.+)")
@@ -23,7 +23,7 @@ def update_mdit(mdit: MarkdownIt) -> None:
 
 def _normalize_list(text: str, node: RenderTreeNode, context: RenderContext) -> str:
     """Post-processor to normalize lists."""
-    eol = "\n"  # PLANNED: Does this need to support carriage returns?
+    eol = "\n"
     indent = " " * _MKDOCS_INDENT_COUNT
 
     rendered = ""
@@ -53,7 +53,7 @@ def _normalize_list(text: str, node: RenderTreeNode, context: RenderContext) ->
                 raise NotImplementedError(f"Error in indentation of: `{line}`")
         else:
             indent_counter = 0
-        last_indent = match["indent"]
+        last_indent = this_indent
         new_indent = indent * indent_counter
         rendered += f"{new_indent}{new_line.strip()}{eol}"
     return rendered.rstrip()