diff --git a/CHANGES.md b/CHANGES.md
index dd4fa6f..cba9713 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,9 @@
 # Microdot change log
 
+**Release 2.3.1** - 2025-04-13
+
+- Additional support needed when using `orjson` ([commit](https://github.com/miguelgrinberg/microdot/commit/cd0b3234ddb0c8ff4861d369836ec2aed77494db))
+
 **Release 2.3.0** - 2025-04-12
 
 - Support optional authentication methods ([commit](https://github.com/miguelgrinberg/microdot/commit/f317b15bdbf924007e5e3414e0c626baccc3ede6))
diff --git a/pyproject.toml b/pyproject.toml
index afb2fb0..0e0f53b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "microdot"
-version = "2.3.1.dev0"
+version = "2.3.1"
 authors = [
     { name = "Miguel Grinberg", email = "miguel.grinberg@gmail.com" },
 ]