diff --git a/pyproject.toml b/pyproject.toml
index f05d42c4..dd6b0d61 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -129,7 +129,7 @@ pydata-sphinx-theme = "^0.14.0"
 sphinx-hoverxref = "^1.3.0"
 sphinx-notfound-page = "^1.0.0rc1"
 sphinx_copybutton = "0.5.2"
-myst_parser = "^3.0.0"
+myst_parser = "^4.0.0"
 sphinx_design = "^0.6.0"
 
 [tool.pytest.ini_options]