diff --git a/CHANGELOG.md b/CHANGELOG.md
index 93bce846..1b356db8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.23.1] - 2024-03-22
+
 ### Fixed
 
 - Fix rodata symbols referencing symbols that it should not reference.
@@ -1453,6 +1455,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Version 1.0.0
 
 [unreleased]: https://github.com/Decompollaborate/spimdisasm/compare/master...develop
+[1.23.1]: https://github.com/Decompollaborate/spimdisasm/compare/1.23.1...1.23.1
 [1.23.0]: https://github.com/Decompollaborate/spimdisasm/compare/1.22.0...1.23.0
 [1.22.0]: https://github.com/Decompollaborate/spimdisasm/compare/1.21.1...1.22.0
 [1.21.0]: https://github.com/Decompollaborate/spimdisasm/compare/1.20.1...1.21.0
diff --git a/README.md b/README.md
index 90db48d0..51681e47 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,7 @@ If you use a `requirements.txt` file in your repository, then you can add
 this library with the following line:
 
 ```txt
-spimdisasm>=1.23.0,<2.0.0
+spimdisasm>=1.23.1,<2.0.0
 ```
 
 ### Development version
diff --git a/pyproject.toml b/pyproject.toml
index 39b80d2a..a77f9d46 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@
 [project]
 name = "spimdisasm"
 # Version should be synced with spimdisasm/__init__.py
-version = "1.23.1.dev0"
+version = "1.23.1"
 description = "MIPS disassembler"
 readme = "README.md"
 license = {file = "LICENSE"}
diff --git a/spimdisasm/__init__.py b/spimdisasm/__init__.py
index f35f21d2..492f862e 100644
--- a/spimdisasm/__init__.py
+++ b/spimdisasm/__init__.py
@@ -6,7 +6,7 @@
 from __future__ import annotations
 
 __version_info__: tuple[int, int, int] = (1, 23, 1)
-__version__ = ".".join(map(str, __version_info__)) + ".dev0"
+__version__ = ".".join(map(str, __version_info__))
 __author__ = "Decompollaborate"
 
 from . import common as common