diff --git a/CHANGELOG.md b/CHANGELOG.md
index c2b907f..e3fc3cd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to WuttaPOS will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## v0.4.2 (2026-01-04)
+
+### Fix
+
+- tweak installer slightly, per upstream changes
+
 ## v0.4.1 (2026-01-03)
 
 ### Fix
diff --git a/pyproject.toml b/pyproject.toml
index a6f9069..5bb5090 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ build-backend = "hatchling.build"
 name = "WuttaPOS"
 # nb. 0.3.0 was the last release of the previous rattail WuttaPOS app.
 # pretty sure this will bump to 0.4.0 and then i can remove this note.
-version = "0.4.1"
+version = "0.4.2"
 description = "Point of Sale system based on Wutta Framework"
 readme = "README.md"
 authors = [{name = "Lance Edgar", email = "lance@wuttaproject.org"}]
@@ -32,7 +32,7 @@ classifiers = [
 ]
 dependencies = [
         "psycopg2",
-        "WuttJamaican[db]>=0.28.4",
+        "WuttJamaican[db]>=0.28.6",
         "WuttaSync",
 ]