diff --git a/CHANGELOG.md b/CHANGELOG.md
index 847919b5..22dad994 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,27 @@
 
 <!-- <START NEW CHANGELOG ENTRY> -->
 
+## 8.5.0
+
+([Full Changelog](https://github.com/jupyter/jupyter_client/compare/v8.4.0...ff94e310c2af3546f2f9384e6b35fd11c3d09a71))
+
+### Enhancements made
+
+- Allow to update kernels env in between restart. [#987](https://github.com/jupyter/jupyter_client/pull/987) ([@Carreau](https://github.com/Carreau))
+
+### Maintenance and upkeep improvements
+
+- Enable strict typing [#984](https://github.com/jupyter/jupyter_client/pull/984) ([@blink1073](https://github.com/blink1073))
+- Update typings for mypy 1.6 [#983](https://github.com/jupyter/jupyter_client/pull/983) ([@blink1073](https://github.com/blink1073))
+
+### Contributors to this release
+
+([GitHub contributors page for this release](https://github.com/jupyter/jupyter_client/graphs/contributors?from=2023-10-11&to=2023-10-25&type=c))
+
+[@blink1073](https://github.com/search?q=repo%3Ajupyter%2Fjupyter_client+involves%3Ablink1073+updated%3A2023-10-11..2023-10-25&type=Issues) | [@Carreau](https://github.com/search?q=repo%3Ajupyter%2Fjupyter_client+involves%3ACarreau+updated%3A2023-10-11..2023-10-25&type=Issues)
+
+<!-- <END NEW CHANGELOG ENTRY> -->
+
 ## 8.4.0
 
 ([Full Changelog](https://github.com/jupyter/jupyter_client/compare/v8.3.1...74044393230e70134f68e664f2ef19fab92b7774))
@@ -22,8 +43,6 @@
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyter%2Fjupyter_client+involves%3Ablink1073+updated%3A2023-08-29..2023-10-11&type=Issues) | [@dependabot](https://github.com/search?q=repo%3Ajupyter%2Fjupyter_client+involves%3Adependabot+updated%3A2023-08-29..2023-10-11&type=Issues) | [@ellert](https://github.com/search?q=repo%3Ajupyter%2Fjupyter_client+involves%3Aellert+updated%3A2023-08-29..2023-10-11&type=Issues) | [@pre-commit-ci](https://github.com/search?q=repo%3Ajupyter%2Fjupyter_client+involves%3Apre-commit-ci+updated%3A2023-08-29..2023-10-11&type=Issues)
 
-<!-- <END NEW CHANGELOG ENTRY> -->
-
 ## 8.3.1
 
 ([Full Changelog](https://github.com/jupyter/jupyter_client/compare/v8.3.0...b4f7d947fae55a4fe59a27df0830a9a78dcd4e12))
diff --git a/jupyter_client/_version.py b/jupyter_client/_version.py
index 3805b913..f9c636d5 100644
--- a/jupyter_client/_version.py
+++ b/jupyter_client/_version.py
@@ -2,7 +2,7 @@
 import re
 from typing import List, Union
 
-__version__ = "8.4.0"
+__version__ = "8.5.0"
 
 # Build up version_info tuple for backwards compatibility
 pattern = r'(?P<major>\d+).(?P<minor>\d+).(?P<patch>\d+)(?P<rest>.*)'