diff --git a/pyproject.toml b/pyproject.toml
index fd8ef89..86129db 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,16 +4,16 @@
 # Contact: qubitium@modelcloud.ai, x.com/qubitium
 
 [build-system]
-requires = ["setuptools>=80", "wheel", "cmake>=3.27", "ninja"]
+requires = ["setuptools>=70.2.0", "wheel", "cmake>=3.27", "ninja"]
 build-backend = "setuptools.build_meta"
 
 [project]
 name = "PyPcre"
-version = "0.3.0"
+version = "0.3.1"
 description = "Modern, GIL-friendly, Fast Python bindings for PCRE2 with auto caching and JIT of compiled patterns."
 readme = "README.md"
 requires-python = ">=3.9"
-license = "Apache-2.0"
+license = { text = "Apache-2.0" }
 authors = [
     { name = "ModelCloud", email = "qubitium@modelcloud.ai" },
 ]