diff --git a/pyproject.toml b/pyproject.toml
index acb9486c9..0f4eb6144 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,10 @@ classifiers = [
         'Intended Audience :: Developers',
         'Topic :: Software Development :: Build Tools',
         'License :: OSI Approved :: GNU Affero General Public License v3',
-        'Programming Language :: Python :: 3.11',
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
         ]
 
 keywords = ['compiler', 'zxspectrum', 'BASIC', 'z80']  # arbitrary keywords
@@ -29,7 +32,7 @@ zxbasm = 'src.zxbasm:main'
 zxbpp = 'src.zxbpp:entry_point'
 
 [tool.poetry.dependencies]
-python = "^3.11"
+python = ">=3.11"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "*"