diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 6b7b74c..da59f99 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.3.0"
+  ".": "0.4.0"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index da6b08a..9e341c8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Changelog
 
+## [0.4.0](https://github.com/01Joseph-Hwang10/loose-dependency-manager/compare/loose-dependency-manager-v0.3.0...loose-dependency-manager-v0.4.0) (2024-05-15)
+
+
+### Features
+
+* add debug flag ([29b3a8a](https://github.com/01Joseph-Hwang10/loose-dependency-manager/commit/29b3a8acfc9fbbbc74a8e82d9ba3e922a03a5a82))
+* add debug log in error ([9e43fa5](https://github.com/01Joseph-Hwang10/loose-dependency-manager/commit/9e43fa55e46031a506f8d8d3e4379b18afbbe96f))
+* improved logging ([74bcf0e](https://github.com/01Joseph-Hwang10/loose-dependency-manager/commit/74bcf0e9737f3c78cc6fc3b814a3e50c8f813805))
+* more verbose logging ([d42e255](https://github.com/01Joseph-Hwang10/loose-dependency-manager/commit/d42e255775dbc2a688a0e53fdec2e6638f0c4559))
+
+
+### Bug Fixes
+
+* environment variable loading ([f8e5f06](https://github.com/01Joseph-Hwang10/loose-dependency-manager/commit/f8e5f06eb71e2d8487e16c1d37d40d71aa9b3b33))
+
 ## [0.3.0](https://github.com/01Joseph-Hwang10/loose-dependency-manager/compare/loose-dependency-manager-v0.2.1...loose-dependency-manager-v0.3.0) (2024-05-15)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index b9d5fba..7fd41af 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "loose-dependency-manager"
-version = "0.3.0"
+version = "0.4.0"
 description = "Tool for managing code dependencies in a loosely-coupled way."
 classifiers = [
   'Development Status :: 5 - Production/Stable',