diff --git a/pyproject.toml b/pyproject.toml
index 9ca5460d7b8..18b0277680c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,7 +65,7 @@ doc = [
     "ansys-sphinx-theme==1.1.1",
     "sphinx-copybutton==0.5.2",
     "sphinx-gallery==0.17.1",
-    "sphinxcontrib-mermaid==0.9.2",
+    "sphinxcontrib-mermaid==1.0.0",
     "docker>=6.1.0",
     "matplotlib==3.9.1.post1",
     "requests>=2.28.2",