diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4fd62ce918..8e1e034ef7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,14 +2,13 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
-## UNRELEASED
+## [5.20.0] - 2024-03-13
 
 ### Updated
 - Updated Plotly.js from version 2.29.1 to version 2.30.0. See the [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#2300----2024-03-06) for more information. These changes are reflected in the auto-generated `plotly.graph_objects` module. Notable changes include:
   - Add fill gradients for scatter traces [[#6905](https://github.com/plotly/plotly.js/pull/6905)], with thanks to @lumip for the contribution!
   - Add `indentation` to legend [[#6874](https://github.com/plotly/plotly.js/pull/6874)], with thanks to @my-tien for the contribution!
 
-
 ## [5.19.0] - 2024-02-15
 
 ### Updated
diff --git a/README.md b/README.md
index c4882aa12f..b1dd124806 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@
 
 ## Quickstart
 
-`pip install plotly==5.19.0`
+`pip install plotly==5.20.0`
 
 Inside [Jupyter](https://jupyter.org/install) (installable with `pip install "jupyterlab>=3" "ipywidgets>=7.6"`):
 
@@ -78,13 +78,13 @@ Built on top of [plotly.js](https://github.com/plotly/plotly.js), `plotly.py` is
 plotly.py may be installed using pip...
 
 ```
-pip install plotly==5.19.0
+pip install plotly==5.20.0
 ```
 
 or conda.
 
 ```
-conda install -c plotly plotly=5.19.0
+conda install -c plotly plotly=5.20.0
 ```
 
 ### JupyterLab Support
@@ -106,7 +106,7 @@ The instructions above apply to JupyterLab 3.x. **For JupyterLab 2 or earlier**,
 
 ```
 # JupyterLab 2.x renderer support
-jupyter labextension install jupyterlab-plotly@5.19.0 @jupyter-widgets/jupyterlab-manager
+jupyter labextension install jupyterlab-plotly@5.20.0 @jupyter-widgets/jupyterlab-manager
 ```
 
 Please check out our [Troubleshooting guide](https://plotly.com/python/troubleshooting/) if you run into any problems with JupyterLab.
diff --git a/packages/javascript/jupyterlab-plotly/package-lock.json b/packages/javascript/jupyterlab-plotly/package-lock.json
index 8c6d4b3018..ebbf96af9f 100644
--- a/packages/javascript/jupyterlab-plotly/package-lock.json
+++ b/packages/javascript/jupyterlab-plotly/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "jupyterlab-plotly",
-  "version": "5.19.0",
+  "version": "5.20.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "jupyterlab-plotly",
-      "version": "5.19.0",
+      "version": "5.20.0",
       "license": "MIT",
       "dependencies": {
         "@jupyter-widgets/base": ">=2.0.0 <7.0.0",
diff --git a/packages/javascript/jupyterlab-plotly/package.json b/packages/javascript/jupyterlab-plotly/package.json
index a14c95185b..4edd7b6e04 100644
--- a/packages/javascript/jupyterlab-plotly/package.json
+++ b/packages/javascript/jupyterlab-plotly/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jupyterlab-plotly",
-  "version": "5.19.0",
+  "version": "5.20.0",
   "description": "The plotly Jupyter extension",
   "author": "The plotly.py team",
   "license": "MIT",
diff --git a/packages/python/plotly/plotly/_widget_version.py b/packages/python/plotly/plotly/_widget_version.py
index 090749dd3b..571d738d47 100644
--- a/packages/python/plotly/plotly/_widget_version.py
+++ b/packages/python/plotly/plotly/_widget_version.py
@@ -2,4 +2,4 @@
 # for automated dev builds
 #
 # It is edited by hand prior to official releases
-__frontend_version__ = "^5.19.0"
+__frontend_version__ = "^5.20.0"