diff --git a/config_framework/__init__.py b/config_framework/__init__.py
index 15a0717..ed6f4b9 100644
--- a/config_framework/__init__.py
+++ b/config_framework/__init__.py
@@ -1,4 +1,4 @@
 from config_framework import loaders, types, utils
 from config_framework.types import BaseConfig, VariableKey, Variable
 
-__version__ = "4.0.2"
+__version__ = "4.1.0"
diff --git a/pyproject.toml b/pyproject.toml
index beabb82..70f3216 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,6 +21,8 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: Implementation :: CPython",
+    "Programming Language :: Python :: Implementation :: PyPy",
     "License :: OSI Approved :: MIT License",
     "Operating System :: OS Independent",
     "Intended Audience :: Developers",