diff --git a/pyproject.toml b/pyproject.toml
index 45289732..f1c2ee87 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,7 +57,7 @@ docs = [
     "mike>=2.1.3",
     "mkdocs>=1.6.1,<2",
     "mkdocs-exclude==1.0.2",
-    "mkdocs-build-plantuml-plugin==1.9.0",
+    "mkdocs-build-plantuml-plugin==1.11.0",
     "mkdocs-glightbox==0.5.2",
     "mkdocs-literate-nav>=0.6.2,<0.7",
     "mkdocs-material>=9.6.20,<10",