diff --git a/{{cookiecutter.project_name}}/pyproject.toml b/{{cookiecutter.project_name}}/pyproject.toml
index c23ae5f..64ea5d8 100644
--- a/{{cookiecutter.project_name}}/pyproject.toml
+++ b/{{cookiecutter.project_name}}/pyproject.toml
@@ -19,7 +19,7 @@ style = "pep440"
 [tool.poetry.dev-dependencies]
 linkml = "^1.3.5"
 mkdocs-material = "^8.2.8"
-mkdocs-mermaid2-plugin = "^0.6.0"
+mkdocs-mermaid2-plugin = "^1.1.1"
 schemasheets = "^0.1.14"
 
 [build-system]
@@ -27,4 +27,4 @@ requires = ["poetry-core>=1.0.0", "poetry-dynamic-versioning"]
 build-backend = "poetry_dynamic_versioning.backend"
 
 [tool.poetry.extras]
-docs = ["linkml", "mkdocs-material"]
\ No newline at end of file
+docs = ["linkml", "mkdocs-material"]