diff --git a/pyproject.toml b/pyproject.toml
index 0af9eb6..eb6775d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ dependencies = ["numpy>=2.4.6", "scipy>=1.17.1", "jinja2>=3.1.6"]
 
 [project.optional-dependencies]
 fem = ["gmsh>=4.15.2", "matplotlib>=3.10"]
-docs = ["sphinx>=9.0.4", "pydata-sphinx-theme>=0.16", "myst-parser>=4", "sphinx-design", "sphinx-copybutton", "sphinx-sitemap", "sphinxext-opengraph", "gmsh>=4.15.2", "matplotlib>=3.10"]
+docs = ["sphinx>=9.0.4", "pydata-sphinx-theme>=0.16", "myst-parser>=5.1.0", "sphinx-design", "sphinx-copybutton", "sphinx-sitemap", "sphinxext-opengraph", "gmsh>=4.15.2", "matplotlib>=3.10"]
 dev = ["pytest>=9.2.0", "pytest-cov", "ruff", "gmsh>=4.15.2", "matplotlib>=3.10"]
 
 [project.urls]