diff --git a/CITATION.cff b/CITATION.cff
index 2dcc612b..aab9691a 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -35,6 +35,6 @@ authors:
     given-names: Stian
     orcid: https://orcid.org/0000-0001-9842-9718
 title: "ro-crate-py"
-version: 0.8.0
+version: 0.9.0
 doi: 10.5281/zenodo.3956493
-date-released: 2023-06-05
+date-released: 2023-10-13
diff --git a/rocrate/_version.py b/rocrate/_version.py
index 777f190d..3e2f46a3 100644
--- a/rocrate/_version.py
+++ b/rocrate/_version.py
@@ -1 +1 @@
-__version__ = "0.8.0"
+__version__ = "0.9.0"