diff --git a/.github/workflows/package.yml b/.github/workflows/package.yml
index ee2936a700fd2311e874cc79be916c6d20cec1c6..afa9e93e2fd6595229b39992f5393f344d5d2eff 100644
--- a/.github/workflows/package.yml
+++ b/.github/workflows/package.yml
@@ -39,7 +39,7 @@ jobs:
         CIBW_BUILD_VERBOSITY: 2
         CIBW_BEFORE_BUILD: pip install cython
         CIBW_TEST_COMMAND: python -m unittest pyfastani.tests -vv
-        CIBW_TEST_REQUIRES: importlib-resources biopython scikit-bio
+        CIBW_TEST_REQUIRES: importlib-resources biopython
       with:
         output-dir: dist
     - uses: actions/upload-artifact@v3
@@ -78,7 +78,7 @@ jobs:
         CIBW_BEFORE_BUILD: pip install cython
         CIBW_BUILD_VERBOSITY: 2
         CIBW_TEST_COMMAND: python -m unittest pyfastani.tests -vv
-        CIBW_TEST_REQUIRES: importlib-resources biopython scikit-bio
+        CIBW_TEST_REQUIRES: importlib-resources biopython
       with:
         output-dir: dist
     - uses: actions/upload-artifact@v3
@@ -117,7 +117,7 @@ jobs:
         CIBW_BEFORE_BUILD: pip install cython
         CIBW_BUILD_VERBOSITY: 2
         CIBW_TEST_COMMAND: python -m unittest pyfastani.tests -vv
-        CIBW_TEST_REQUIRES: importlib-resources biopython scikit-bio
+        CIBW_TEST_REQUIRES: importlib-resources biopython
       with:
         output-dir: dist
     - uses: actions/upload-artifact@v3
@@ -152,7 +152,7 @@ jobs:
         CIBW_BEFORE_BUILD: pip install cython
         CIBW_BUILD_VERBOSITY: 2
         CIBW_TEST_COMMAND: python -m unittest pyfastani.tests -vv
-        CIBW_TEST_REQUIRES: importlib-resources biopython scikit-bio
+        CIBW_TEST_REQUIRES: importlib-resources biopython
       with:
         output-dir: dist
     - uses: actions/upload-artifact@v3
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2af56b22133aed038d36cc10fcdd13034c206e60..ce5299c99d14e1fde784f27082cf6e0696721771 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,18 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 
 ## [Unreleased]
-[Unreleased]: https://github.com/althonos/pyfastani/compare/v0.4.1...HEAD
+[Unreleased]: https://github.com/althonos/pyfastani/compare/v0.5.0...HEAD
+
+
+## [v0.5.0] - 2023-07-22
+[v0.5.0]: https://github.com/althonos/pyfastani/compare/v0.4.1...v0.5.0
+
+### Changed
+- Bump Cython dependency to `v3.0`.
+
+### Fixed
+- Add missing signature of `Sketch.index` to type stubs.
+- PyPy builds failing on missing `PyInterpreterState_GetID` function.
 
 
 ## [v0.4.1] - 2022-08-20
diff --git a/pyfastani/__init__.py b/pyfastani/__init__.py
index f92fc46a4d4f1553a7fbebc234a12eb1ce179998..7bb583599f290ea39aa0aa046783017f89ddc38e 100644
--- a/pyfastani/__init__.py
+++ b/pyfastani/__init__.py
@@ -12,7 +12,7 @@ from ._fastani import (
 
 __author__ = "Martin Larralde <martin.larralde@embl.de>"
 __license__ = "MIT"
-__version__ = "0.4.1"
+__version__ = "0.5.0"
 
 __doc__ = _fastani.__doc__
 __all__ = [
diff --git a/setup.cfg b/setup.cfg
index e5af16e3fed4d099527fb6a4ccedad64d709fdb2..2754d6bbf7188775c6f9ef723481085037b12b0d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -27,6 +27,7 @@ classifier =
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
     Programming Language :: Python :: Implementation :: CPython
     Programming Language :: Python :: Implementation :: PyPy
     Topic :: Scientific/Engineering :: Bio-Informatics