diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..523ab62
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,13 @@
+# Changelog
+All notable changes to this project will be documented in this file. See [conventional commits](https://www.conventionalcommits.org/) for commit guidelines.
+
+- - -
+## [v0.3.1](https://github.com/armakuni/is-it-green-yet/compare/v0.3.0..v0.3.1) - 2023-07-04
+#### Bug Fixes
+- Allow the switching of data sources - ([5bf68de](https://github.com/armakuni/is-it-green-yet/commit/5bf68de6eaaa9b0ffe0dcd9df23e640626beedba)) - Billie Thompson
+#### Refactoring
+- Make calls to datasource async - ([9141b18](https://github.com/armakuni/is-it-green-yet/commit/9141b183b15c8aa82af8df4f700bfa1af43734f1)) - Billie Thompson
+
+- - -
+
+Changelog generated by [cocogitto](https://github.com/cocogitto/cocogitto).
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index f12168d..bc559ba 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "carbon_guard"
-version = "0.1.0"
+version = "0.3.1"
 description = ""
 authors = [
   "Adam Gardner <adam.gardner@armakuni.com>",