diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1014db1..60ce35b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.12)
 
 # Also update version in nihtest/__main__.py and pyproject.toml
 project(nihtest
-        VERSION 1.8.0
+        VERSION 1.9.0
         DESCRIPTION "NiH testing framework"
         HOMEPAGE_URL "https://github.com/nih-at/nihtest"
         LANGUAGES C)
diff --git a/NEWS.md b/NEWS.md
index 804c678..2bda9eb 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,4 +1,4 @@
-# 1.9.0 [Unreleased]
+# 1.9.0 [2024-12-17]
 
 - Fail for unexpeced empty directories.
 - Allow specifying existance of directories.
diff --git a/nihtest/__main__.py b/nihtest/__main__.py
index a550fa8..848e9e0 100644
--- a/nihtest/__main__.py
+++ b/nihtest/__main__.py
@@ -4,7 +4,7 @@
 from nihtest import Test
 from nihtest import Configuration
 
-VERSION = "1.8.0"
+VERSION = "1.9.0"
 
 
 def main():
diff --git a/pyproject.toml b/pyproject.toml
index ef99340..6f00205 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "nihtest"
-version = "1.8.0"
+version = "1.9.0"
 authors = [
     { name="Dieter Baron", email="dillo@nih.at" },
     { name="Thomas Klausner", email="wiz@gatalith.at"}
@@ -30,7 +30,7 @@ dependencies = [
 nihtest = "nihtest.__main__:main"
 
 [tool.bumpver]
-current_version = "1.8.0"
+current_version = "1.9.0"
 version_pattern = "MAJOR.MINOR.PATCH"
 
 [tool.bumpver.file_patterns]