diff --git a/CHANGELOG.md b/CHANGELOG.md
index b3861de566f..1871f331a51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 ### Updated
   - Updated Plotly.js to from version 2.17.1 to version 2.18.0. See the [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#2180----2023-01-19) for more information. Notable changes include:
     - Add `sync` tickmode option [[#6356](https://github.com/plotly/plotly.js/pull/6356), [#6443](https://github.com/plotly/plotly.js/pull/6443)], with thanks to @filipesantiagoAM and @VictorBezak for the contribution!
+  - Build process now uses Node 18.x and version 2 lockfile (should be an invisible change for users) [[#4034](https://github.com/plotly/plotly.py/pull/4034)]
+
+### Fixed
+  - `write_html()` now explicitly encodes output as UTF-8 because Plotly.js' bundle contains such characters [[#4021](https://github.com/plotly/plotly.py/pull/4021)] and [[#4022](https://github.com/plotly/plotly.py/pull/4022)]
+  - fixed `iframe` renderer regression from 5.12 and also fixed error when this renderer was used in the very first cell in a notebook [[#4036](https://github.com/plotly/plotly.py/pull/4036)]
 
 
 ## [5.12.0] - 2023-01-12
diff --git a/README.md b/README.md
index c3e13263efd..d89576ad603 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@
 
 ## Quickstart
 
-`pip install plotly==5.12.0`
+`pip install plotly==5.13.0`
 
 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==5.12.0
+pip install plotly==5.13.0
 ```
 
 or conda.
 
 ```
-conda install -c plotly plotly=5.12.0
+conda install -c plotly plotly=5.13.0
 ```
 
 ### 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@5.12.0 @jupyter-widgets/jupyterlab-manager
+jupyter labextension install jupyterlab-plotly@5.13.0 @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 c800500e23f..5e996d11e7c 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": "5.12.0",
+  "version": "5.13.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "jupyterlab-plotly",
-      "version": "5.12.0",
+      "version": "5.13.0",
       "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 25472e4d959..2902b3feb4a 100644
--- a/packages/javascript/jupyterlab-plotly/package.json
+++ b/packages/javascript/jupyterlab-plotly/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jupyterlab-plotly",
-  "version": "5.12.0",
+  "version": "5.13.0",
   "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 d97b82723b7..bf563920ece 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__ = "^5.12.0"
+__frontend_version__ = "^5.13.0"
diff --git a/release.md b/release.md
index 574ce7f7285..c9998422159 100644
--- a/release.md
+++ b/release.md
@@ -42,7 +42,7 @@ Manually update the versions to `X.Y.Z` in the files specified below.
  - `packages/javascript/jupyterlab-plotly/package.json`
    + Update `"version"` to `X.Y.Z`
  - `packages/javascript/jupyterlab-plotly/package-lock.json`
-   + Update `"version"` to `X.Y.Z`
+   + Update `"version"` to `X.Y.Z` in two places (to avoid dirty repo after rebuild)
  - Commit your changes on the branch:
    + `git commit -a -m "version changes for vX.Y.Z"`