diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4b7e923d..8e0c466b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [0.4.0]
 ### Added
 - Added `__len__` and `__repr__` functions to the Section class. ([#90](https://github.com/jstockwin/py-pdf-parser/pull/90))
 - Added flag to `extract_simple_table` and `extract_table` functions to remove duplicate header rows. ([#89](https://github.com/jstockwin/py-pdf-parser/pull/89))
diff --git a/setup.py b/setup.py
index 88c1ce6f..daf777b3 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@
     name="py-pdf-parser",
     packages=find_packages(),
     exclude=["tests.*", "tests", "docs", "docs.*"],
-    version="0.3.0",
+    version="0.4.0",
     url="https://github.com/jstockwin/py-pdf-parser",
     license="BSD",
     description="A tool to help extracting information from structured PDFs.",