diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2537c1f..f1c1e58 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.4.0"
+  ".": "0.5.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4647f68..4c875f7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.5.0](https://github.com/gemmadanks/python-project-template/compare/v0.4.0...v0.5.0) (2025-10-12)
+
+
+### 🚀 Features
+
+* add architectural decision records ([#12](https://github.com/gemmadanks/python-project-template/issues/12)) ([4d1a08e](https://github.com/gemmadanks/python-project-template/commit/4d1a08e8ffd4336e09200b9f690c8e28347f9b45))
+
 ## [0.4.0](https://github.com/gemmadanks/python-project-template/compare/v0.3.0...v0.4.0) (2025-10-11)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index bce010d..460af43 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "package_name"
-version = "0.4.0"
+version = "0.5.0"
 description = "A python package."
 authors = [
     {name = "Your Name",email = "you@example.com"}