diff --git a/.readthedocs.yml b/.readthedocs.yml
index cb68e005..23749baf 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -7,6 +7,7 @@ build:
 
 python:
   install:
+      - requirements: docs/requirements.txt
       - method: pip
         path: .
         extra_requirements:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1d02f42d..8822bf7c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Change Log
 
+## 4.0.0 - 2024-08-10
+
+This primarily drops support for Python 3.9, adds support for Python 3.13,
+and updates the parser to comply with Commonmark 0.31.2 and Markdown-It v14.1.0.
+
+* ⬆️ Drop support for Python 3.9 in [#360](https://github.com/executablebooks/markdown-it-py/pull/360)
+* ⬆️ Comply with Commonmark 0.31.2 in [#362](https://github.com/executablebooks/markdown-it-py/pull/362)
+* 👌 Improve performance of "text" inline rule in [#347](https://github.com/executablebooks/markdown-it-py/pull/347)
+* 👌 Use `str.removesuffix` in [#348](https://github.com/executablebooks/markdown-it-py/pull/348)
+* 👌 limit the number of autocompleted cells in a table in [#364](https://github.com/executablebooks/markdown-it-py/pull/364)
+* 👌 fix quadratic complexity in reference parser in [#367](https://github.com/executablebooks/markdown-it-py/pull/367)
+* 🐛 Fix emphasis inside raw links bugs in [#320](https://github.com/executablebooks/markdown-it-py/pull/320)
+
+**Full Changelog**: <https://github.com/executablebooks/markdown-it-py/compare/v3.0.0...v4.0.0>
+
 ## 3.0.0 - 2023-06-03
 
 ⚠️ This release contains some minor breaking changes in the internal API and improvements to the parsing strictness.
diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 00000000..b7938970
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1,2 @@
+# temporary requirement until myst-parser is updated to allow markdown-it-py v4
+git+https://github.com/executablebooks/MyST-Parser.git@update-markdown-parser
diff --git a/markdown_it/__init__.py b/markdown_it/__init__.py
index 399c6b70..9fac2795 100644
--- a/markdown_it/__init__.py
+++ b/markdown_it/__init__.py
@@ -1,6 +1,6 @@
 """A Python port of Markdown-It"""
 
 __all__ = ("MarkdownIt",)
-__version__ = "3.0.0"
+__version__ = "4.0.0"
 
 from .main import MarkdownIt
diff --git a/markdown_it/port.yaml b/markdown_it/port.yaml
index 3e289e9e..ce2dde95 100644
--- a/markdown_it/port.yaml
+++ b/markdown_it/port.yaml
@@ -1,7 +1,7 @@
 - package: markdown-it/markdown-it
-  version: 13.0.1
-  commit: e843acc9edad115cbf8cf85e676443f01658be08
-  date: May 3, 2022
+  version: 14.1.0
+  commit: 0fe7ccb4b7f30236fb05f623be6924961d296d3d
+  date: Mar 19, 2024
   notes:
     - Rename variables that use python built-in names, e.g.
       - `max` -> `maximum`
diff --git a/pyproject.toml b/pyproject.toml
index 86353250..2414f41d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,9 +43,9 @@ compare = [
     "markdown-it-pyrs",
 ]
 linkify = ["linkify-it-py>=1,<3"]
-plugins = ["mdit-py-plugins"]
+plugins = ["mdit-py-plugins>=0.5.0"]
 rtd = [
-    "mdit-py-plugins",
+    "mdit-py-plugins>=0.5.0",
     "myst-parser",
     "pyyaml",
     "sphinx",