diff --git a/CHANGELOG.md b/CHANGELOG.md
index 090807b..6afe95f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [0.9.0] (June 29 2023)
+
 ### Added
 
 - `ParamDB.path` to retrieve the database path.
@@ -104,7 +106,8 @@ project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 - Database class `ParamDB` to store parameters in a SQLite file
 - Ability to retrieve the commit history as `CommitEntry` objects
 
-[unreleased]: https://github.com/PainterQubits/paramdb/compare/v0.8.0...develop
+[unreleased]: https://github.com/PainterQubits/paramdb/compare/v0.9.0...develop
+[0.9.0]: https://github.com/PainterQubits/paramdb/releases/tag/v0.9.0
 [0.8.0]: https://github.com/PainterQubits/paramdb/releases/tag/v0.8.0
 [0.7.0]: https://github.com/PainterQubits/paramdb/releases/tag/v0.7.0
 [0.6.0]: https://github.com/PainterQubits/paramdb/releases/tag/v0.6.0
diff --git a/CITATION.cff b/CITATION.cff
index 2946409..3146d19 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -4,6 +4,6 @@ authors:
   - family-names: "Hadley"
     given-names: "Alex"
 title: "ParamDB"
-version: 0.8.0
-date-released: 2023-06-09
+version: 0.9.0
+date-released: 2023-06-29
 url: "https://github.com/PainterQubits/paramdb"
diff --git a/docs/conf.py b/docs/conf.py
index f648d6e..c607c86 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -4,7 +4,7 @@
 project = "ParamDB"
 copyright = "2023, California Institute of Technology"
 author = "Alex Hadley"
-release = "0.8.0"
+release = "0.9.0"
 
 # General configuration
 extensions = [
diff --git a/pyproject.toml b/pyproject.toml
index 2e86ebd..5435a6c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "paramdb"
-version = "0.8.0"
+version = "0.9.0"
 description = "Python package for storing and retrieving experiment parameters."
 authors = ["Alex Hadley <alexhad6@gmail.com>"]
 license = "BSD-3-Clause"