diff --git a/README.rst b/README.rst
index 198dfcb..3de9fb8 100644
--- a/README.rst
+++ b/README.rst
@@ -1,7 +1,7 @@
 StarDist OPP
 ============
 
-|PyPI| |Status| |Python Version| |License|
+|PyPI| |Zenodo| |Status| |Python Version| |License|
 
 |Read the Docs| |Tests| |Codecov|
 
@@ -34,6 +34,9 @@ StarDist OPP
 .. |Black| image:: https://img.shields.io/badge/code%20style-black-000000.svg
    :target: https://github.com/psf/black
    :alt: Black
+.. |Zenodo| image:: https://zenodo.org/badge/454865222.svg
+   :target: https://zenodo.org/badge/latestdoi/454865222
+   :alt: Zenodo
 
 
 This repository contains the python package for the new StarDist post-processing step *StarDist OPP*. *StarDist OPP* allows to use `StarDist`_ segmentation on non-star-convex objects. In our `paper`_, we show that *StarDist OPP* outperforms other methods in instance segmentation tasks for three-dimensional microbial biofilms. Check it out for more information.
diff --git a/noxfile.py b/noxfile.py
index 8e3c55b..189a5c1 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -146,6 +146,8 @@ def safety(session: Session) -> None:
         "--ignore=44715",
         "--ignore=44716",
         "--ignore=44717",
+        # ignore a tornado safety issue
+        "--ignore=59071",
     )
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 6d36710..7e4419f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ homepage = "https://github.com/gatoniel/merge-stardist-masks"
 repository = "https://github.com/gatoniel/merge-stardist-masks"
 documentation = "https://merge-stardist-masks.readthedocs.io"
 classifiers = [
-    "Development Status :: 1 - Planning",
+    "Development Status :: 5 - Production/Stable",
 ]
 
 [tool.poetry.urls]