diff --git a/CHANGELOG.md b/CHANGELOG.md
index 82a90b81ac..5a91d7051e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,10 +4,23 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
 
+## [6.3.1] - 2025-10-02
+
+### Updated
+- Update Plotly.js from version 3.1.0 to version 3.1.1. See the Plotly.js [release notes](https://github.com/plotly/plotly.js/releases) for more information. [[#5357](https://github.com/plotly/plotly.py/pull/5357)]. Notable changes include:
+  - Fix issue preventing Scattergl plots with text elements from rendering [[plotly.js#7563](https://github.com/plotly/plotly.js/pull/7563)]
+- Use native legends when converting from matplotlib [[#5312](https://github.com/plotly/plotly.py/pull/5312)], with thanks to @robertoffmoura to the contribution!
+- Allow `shared_yaxes` to work with secondary axes [[#5180](https://github.com/plotly/plotly.py/pull/5180)], with thanks to @gmjw for the contribution!
+
+### Fixed
+- Fix issue where width/height in plot layout were not respected during Kaleido image export [[#5325](https://github.com/plotly/plotly.py/pull/5325)]
+- Fix typo in default argument to `_ternary_contour.py` [[#5315](https://github.com/plotly/plotly.py/pull/5315)], with thanks to @Lexachoc for the contribution!
+- Fix incorrect `fig.show()` behavior when `ipython` is installed [[#5258](https://github.com/plotly/plotly.py/pull/5258)]
+
 ## [6.3.0] - 2025-08-12
 
 ### Updated
-- Updated Plotly.js from version 3.0.1 to version 3.1.0. See the plotly.js [release notes](https://github.com/plotly/plotly.js/releases) for more information. [[#5318](https://github.com/plotly/plotly.py/pull/5318)]
+- Updated Plotly.js from version 3.0.1 to version 3.1.0. See the Plotly.js [release notes](https://github.com/plotly/plotly.js/releases) for more information. [[#5318](https://github.com/plotly/plotly.py/pull/5318)]
 
 ### Added
 - Exposed `plotly.io.get_chrome()` as a function which can be called from within a Python script. [[#5282](https://github.com/plotly/plotly.py/pull/5282)]
diff --git a/CITATION.cff b/CITATION.cff
index b6d3fa69ab..69893f4bab 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -9,8 +9,8 @@ authors:
 - family-names: "Parmer"
   given-names: "Chris"
 title: "An interactive, open-source, and browser-based graphing library for Python"
-version: 6.3.0
+version: 6.3.1
 doi: 10.5281/zenodo.14503524
-date-released: 2025-08-12
+date-released: 2025-10-02
 url: "https://github.com/plotly/plotly.py"
 
diff --git a/pyproject.toml b/pyproject.toml
index 7a466acb7d..24a2bbade8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ classifiers = [
 ]
 requires-python = ">=3.8"
 license = {file="LICENSE.txt"}
-version = "6.3.0"
+version = "6.3.1"
 dependencies = [
     "narwhals>=1.15.1",
     "packaging"
diff --git a/uv.lock b/uv.lock
index 7ec06dacbf..f60357c3ff 100644
--- a/uv.lock
+++ b/uv.lock
@@ -4276,7 +4276,7 @@ wheels = [
 
 [[package]]
 name = "plotly"
-version = "6.3.0"
+version = "6.3.1"
 source = { editable = "." }
 dependencies = [
     { name = "narwhals" },