diff --git a/pyproject.toml b/pyproject.toml
index e6479fa..3a5a53a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "metaspace-converter"
-version = "0.1.0"
+version = "1.0.0"
 authors = [
     {name = "Tim Daniel Rose", email = "tim.rose@embl.de"},
     {name = "Andreas Eisenbarth", email = "andreas.eisenbarth@embl.de"},