diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## 0.4.1.0 — 2026-08-18
+
+### Changed
+
+- Version bump only, to stay on the shared Kioku version. The release moves `kioku-core` onto the
+  Baikai 0.5 cohort; this package is unchanged apart from its internal dependency bounds.
+
 ## 0.4.0.0 — 2026-08-17
 
 ### Added
diff --git a/kioku-api.cabal b/kioku-api.cabal
--- a/kioku-api.cabal
+++ b/kioku-api.cabal
@@ -1,6 +1,6 @@
 cabal-version:   3.0
 name:            kioku-api
-version:         0.4.0.0
+version:         0.4.1.0
 synopsis:        Reusable agent memory wire types
 description:
   Wire contract for kioku: custom prelude, TypeID identifiers, memory
@@ -78,7 +78,7 @@
     , base         >=4.21     && <5
     , bytestring   >=0.11     && <0.13
     , containers   >=0.6      && <0.8
-    , kioku-api    ^>=0.4.0.0
+    , kioku-api    ^>=0.4.1.0
     , tasty        >=1.5      && <1.6
     , tasty-hunit  >=0.10     && <0.11
     , text         >=2.1      && <2.2