diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 0ee8c01..2537c1f 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.3.0"
+  ".": "0.4.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b4ab372..70bb539 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [0.4.0](https://github.com/bluegardenproject/github-butler/compare/v0.3.0...v0.4.0) (2026-05-12)
+
+
+### Features
+
+* add selectable themes and harden installer downloads ([e4645fa](https://github.com/bluegardenproject/github-butler/commit/e4645fa1d4002759415606c71618d24736dc0671))
+* **theme:** add high contrast examples ([87d86c8](https://github.com/bluegardenproject/github-butler/commit/87d86c8d252523fd0f44e91872bbe8f850d62c7a))
+
 ## [0.3.0](https://github.com/bluegardenproject/github-butler/compare/v0.2.0...v0.3.0) (2026-05-11)
 
 
diff --git a/main.go b/main.go
index b018ffe..261ba67 100644
--- a/main.go
+++ b/main.go
@@ -17,7 +17,7 @@ import (
 // Release Please bumps this on every release via the `extra-files`
 // entry in release-please-config.json, so the in-tree default also
 // matches the latest tagged release between rebuilds.
-var Version = "0.3.0" // x-release-please-version
+var Version = "0.4.0" // x-release-please-version
 
 // BuildTime is the UTC timestamp the binary was built at, set via:
 //