diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index c8bc03b..73d0726 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "3.14t", "3.15.0-alpha.1"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/tests_and_coverage.yml b/.github/workflows/tests_and_coverage.yml
index 18da464..c443433 100644
--- a/.github/workflows/tests_and_coverage.yml
+++ b/.github/workflows/tests_and_coverage.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: [macos-latest, ubuntu-latest, windows-latest]
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "3.14t", "3.15.0-alpha.1"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/denial/inner.py b/denial/inner.py
index 6e34e26..22e966f 100644
--- a/denial/inner.py
+++ b/denial/inner.py
@@ -3,7 +3,7 @@
 from typing import Any, Optional, Union
 
 from locklib import ContextLockProtocol
-from printo import descript_data_object, not_none
+from printo import describe_data_object, not_none
 
 from denial.errors import (
     DoubleSingletonsInstantiationError,
@@ -48,7 +48,7 @@ def __hash__(self) -> int:
     def __repr__(self) -> str:
         if self.id == 0 and self.auto:
             return 'InnerNone'
-        return descript_data_object(type(self).__name__, (self.id,), {'doc': self.doc, 'auto': self.auto}, filters={'auto': lambda x: x != True, 'doc': not_none})
+        return describe_data_object(type(self).__name__, (self.id,), {'doc': self.doc, 'auto': self.auto}, filters={'auto': lambda x: x != True, 'doc': not_none})
 
     def __bool__(self) -> bool:
         return False
diff --git a/pyproject.toml b/pyproject.toml
index cdf2b70..e959ec8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,13 +4,13 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "denial"
-version = "0.0.11"
+version = "0.0.12"
 authors = [{ name = "Evgeniy Blinov", email = "zheni-b@yandex.ru" }]
 description = "Is one None not enough for you? There's more"
 readme = "README.md"
 requires-python = ">=3.8"
 dependencies = [
-    'printo>=0.0.10',
+    'printo>=0.0.22',
     'locklib>=0.0.20',
     'typing_extensions ; python_version <= "3.10"',
 ]
@@ -28,6 +28,7 @@ classifiers = [
     'Programming Language :: Python :: 3.12',
     'Programming Language :: Python :: 3.13',
     'Programming Language :: Python :: 3.14',
+    'Programming Language :: Python :: 3.15',
     'Programming Language :: Python :: Free Threading',
     'Programming Language :: Python :: Free Threading :: 3 - Stable',
     'License :: OSI Approved :: MIT License',