diff --git a/CHANGELOG.md b/CHANGELOG.md
index 47d9e5b805080a7a0e8447d361de018cc092fee4..a68af0824816500d3510386cdc95bf155e7f6dd5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,22 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 
 ## [Unreleased]
-[Unreleased]: https://github.com/althonos/lightmotif/compare/v0.9.0...HEAD
+[Unreleased]: https://github.com/althonos/lightmotif/compare/v0.9.1...HEAD
+
+
+## [v0.9.1] - 2024-09-03
+[v0.9.1]: https://github.com/althonos/lightmotif/compare/v0.9.0...v0.9.1
+
+### Added
+
+#### `lightmotif-py`
+- Arch User Repository package `python-lightmotif` to distribute the Python package on ArchLinux.
+
+### Fixed
+
+#### `lightmotif-py`
+- Fix issues with source distribution missing required files for compilation.
+- Remove unused test data to reduce size of source distribution.
 
 
 ## [v0.9.0] - 2024-09-02
diff --git a/lightmotif-bench/Cargo.toml b/lightmotif-bench/Cargo.toml
index ec193ecb6d26bef0d146d20bf3f8ce476ec1d518..6229843bc6a2200902735952aa4b07fac302c0bf 100644
--- a/lightmotif-bench/Cargo.toml
+++ b/lightmotif-bench/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightmotif-bench"
-version = "0.9.0"
+version = "0.9.1"
 edition = "2021"
 publish = false
 
diff --git a/lightmotif-io/Cargo.toml b/lightmotif-io/Cargo.toml
index 1cc9be77cff56f33f0ba88a980b039e7227be4c7..0d55f5ce1309db834d4ae593f274908cef0f066c 100644
--- a/lightmotif-io/Cargo.toml
+++ b/lightmotif-io/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightmotif-io"
-version = "0.9.0"
+version = "0.9.1"
 authors = ["Martin Larralde <martin.larralde@embl.de>"]
 edition = "2021"
 license = "MIT"
@@ -20,4 +20,4 @@ generic-array = "1.0"
 
 [dependencies.lightmotif]
 path = "../lightmotif"
-version = "0.9.0"
+version = "0.9.1"
diff --git a/lightmotif-py/Cargo.toml b/lightmotif-py/Cargo.toml
index 74f31152d84f1b463aa7de9b8658fba0e2a62e67..81ae381065500c6a5fc16a3ecaa060a3ae6485e2 100644
--- a/lightmotif-py/Cargo.toml
+++ b/lightmotif-py/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightmotif-py"
-version = "0.9.0"
+version = "0.9.1"
 authors = ["Martin Larralde <martin.larralde@embl.de>"]
 edition = "2021"
 license = "MIT OR GPL-3.0-or-later"
@@ -18,14 +18,14 @@ doctest = false
 
 [dependencies.lightmotif]
 path = "../lightmotif"
-version = "0.9.0"
+version = "0.9.1"
 [dependencies.lightmotif-io]
 path = "../lightmotif-io"
-version = "0.9.0"
+version = "0.9.1"
 [dependencies.lightmotif-tfmpvalue]
 optional = true
 path = "../lightmotif-tfmpvalue"
-version = "0.9.0"
+version = "0.9.1"
 [dependencies]
 pyo3 = "0.22.0"
 generic-array = "1.0.0"
diff --git a/lightmotif-py/docs/_static/json/switcher.json b/lightmotif-py/docs/_static/json/switcher.json
index 163671f2cd786cc2beea241aaff59e8c29767fed..8ebc3b59ca134a164e3642f7fe3bd7a68f4e5c38 100644
--- a/lightmotif-py/docs/_static/json/switcher.json
+++ b/lightmotif-py/docs/_static/json/switcher.json
@@ -1,8 +1,8 @@
 [
     {
         "name": "v0.9 (latest)",
-        "version": "0.9.0",
-        "url": "https://lightmotif.readthedocs.io/en/v0.9.0/"
+        "version": "0.9.1",
+        "url": "https://lightmotif.readthedocs.io/en/v0.9.1/"
     },
     {
         "name": "v0.8",
diff --git a/lightmotif-py/lightmotif/__init__.py b/lightmotif-py/lightmotif/__init__.py
index 180cb512f6851121a0bd07987a796698e57630fe..ffe2fcbe20d28c838cda6fd6d310ab683527f9a0 100644
--- a/lightmotif-py/lightmotif/__init__.py
+++ b/lightmotif-py/lightmotif/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "0.9.0-post2"
+__version__ = "0.9.1"
 
 from . import lib
 from .lib import (
diff --git a/lightmotif-tfmpvalue/Cargo.toml b/lightmotif-tfmpvalue/Cargo.toml
index 7e3c2617bfe580391b05c082c1473b4de12709f5..fc4847e7fbefe78db1e424030ff373223d9daef5 100644
--- a/lightmotif-tfmpvalue/Cargo.toml
+++ b/lightmotif-tfmpvalue/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightmotif-tfmpvalue"
-version = "0.9.0"
+version = "0.9.1"
 authors = ["Martin Larralde <martin.larralde@embl.de>"]
 edition = "2021"
 license = "GPL-3.0-or-later"
@@ -13,5 +13,5 @@ keywords = ["bioinformatics", "motif", "pssm", "pvalue"]
 
 [dependencies.lightmotif]
 path = "../lightmotif"
-version = "0.9.0"
+version = "0.9.1"
 
diff --git a/lightmotif/Cargo.toml b/lightmotif/Cargo.toml
index 4927ea14d1da7ede99c3f379fed6accacd0bab8e..099ea6d0b5e3f746815e5eb417476f9d2e4e8c1a 100644
--- a/lightmotif/Cargo.toml
+++ b/lightmotif/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightmotif"
-version = "0.9.0"
+version = "0.9.1"
 authors = ["Martin Larralde <martin.larralde@embl.de>"]
 edition = "2021"
 license = "MIT"