diff --git a/.github/workflows/github-ci.yml b/.github/workflows/github-ci.yml
index 882cdccc..efaa1d7c 100644
--- a/.github/workflows/github-ci.yml
+++ b/.github/workflows/github-ci.yml
@@ -39,7 +39,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "pypy3.9-v7.3.15"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "pypy3.9-v7.3.15"]
         os: [macos-11, macos-12, ubuntu-20.04, ubuntu-22.04, windows-2019, windows-2022]
         exclude:
           # temporarily exclude pypy3 on mac-os as there failing tests caused by bug on cbc side
diff --git a/pyproject.toml b/pyproject.toml
index 99505f05..8019b739 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 name = "mip"
 description = "Python tools for Modeling and Solving Mixed-Integer Linear Programs (MIPs)"
 readme = "README.md"
-requires-python = ">=3.7,<3.13"
+requires-python = ">=3.7"
 license = {file = "LICENSE"}
 authors = [
     {name="Tulio A.M. Toffolo", email="tulio@toffolo.com.br"},