diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2be9c43..0ee8c01 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.2.0"
+  ".": "0.3.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac11a4a..9a1d66d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [0.3.0](https://github.com/gemmadanks/python-project-template/compare/v0.2.0...v0.3.0) (2025-10-09)
+
+
+### Features
+
+* add badge for codecov ([c0c5325](https://github.com/gemmadanks/python-project-template/commit/c0c5325390f2805f0f4a003a390e41e6cd831288))
+* upload codecov ([#5](https://github.com/gemmadanks/python-project-template/issues/5)) ([c0c5325](https://github.com/gemmadanks/python-project-template/commit/c0c5325390f2805f0f4a003a390e41e6cd831288))
+
 ## [0.2.0](https://github.com/gemmadanks/python-project-template/compare/v0.1.0...v0.2.0) (2025-10-09)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 8dda695..ee614eb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "package_name"
-version = "0.2.0"
+version = "0.3.0"
 description = "A python package."
 authors = [
     {name = "Your Name",email = "you@example.com"}