diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..7e2d590
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,18 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog][changelog], and this project adheres
+to the [Haskell Package Versioning Policy][pvp].
+
+## [Unreleased]
+
+## [1.0.0.0] - 2021-05-27
+
+Initial release
+
+[Unreleased]: [https://github.com/awakesecurity/nix-graph/compare/v1.0.0.0...HEAD]
+[1.0.0.0]: https://github.com/awakesecurity/nix-graph/releases/tag/v1.0.0.0
+
+[changelog]: https://keepachangelog.com/en/1.0.0/
+[pvp]: https://pvp.haskell.org/
diff --git a/README.md b/README.md
index 0218be0..589eca7 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,5 @@
 
 Reify the Nix build graph into a Haskell graph data structure
 
+[![Hackage](https://img.shields.io/hackage/v/nix-graph.svg?logo=haskell&label=nix-graph)](https://hackage.haskell.org/package/nix-graph)
 [![CI](https://github.com/awakesecurity/nix-graph/actions/workflows/ci.yml/badge.svg)](https://github.com/awakesecurity/nix-graph/actions/workflows/ci.yml)