diff --git a/pyproject.toml b/pyproject.toml
index 3fdea3c..a375964 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ importlib-metadata = { version = ">1", markers = "python_version <= '3.8'" }
 sphinx-rtd-theme = { version = "^2.0.0", optional = true }
 sphinx-tabs = { version = "^3", optional = true }
 sphinx-copybutton = { version = "^0.5.0", optional = true }
-sphinxcontrib-mermaid = { version = "^0.9.0", optional = true }
+sphinxcontrib-mermaid = { version = "^1.0.0", optional = true }
 myst-parser = {version = "^3.0.0", optional = true }
 
 # extras tests