diff --git a/pyproject.toml b/pyproject.toml
index 1ad2418..227aaef 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "setuptools.build_meta"
 [project]
 name = "bfabric"
 description = "Python client for the B-Fabric WSDL API"
-version = "1.13.8"
+version = "1.13.9"
 license = { text = "GPL-3.0" }
 authors = [
     { name = "Christian Panse", email = "cp@fgcz.ethz.ch" },