diff --git a/.gitea/workflows/render.yaml b/.gitea/workflows/render.yaml
index 4e5a3fc..2242798 100644
--- a/.gitea/workflows/render.yaml
+++ b/.gitea/workflows/render.yaml
@@ -9,7 +9,7 @@ jobs:
   render:
     runs-on: ubuntu-latest
     env:
-      PLANTUML_VERSION: '1.2024.8'
+      PLANTUML_VERSION: '1.2025.0'
     steps:
       - name: Check out repository code
         uses: actions/checkout@v4