diff --git a/setup.py b/setup.py
index 1c1a3b5..78b46b2 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@ def get_version(rel_path):
 
 setup(
     name="xi-mzidentml-converter",
-    version="0.1.20",
+    version="0.1.21",
     description="xi-mzidentml-converter uses pyteomics (https://pyteomics.readthedocs.io/en/latest/index.html) to parse mzIdentML files (v1.2.0) and extract crosslink information. Results are written to a relational database (PostgreSQL or SQLite) using sqlalchemy.",
     long_description_content_type="text/markdown",
     long_description=long_description,