diff --git a/ankr/providers.py b/ankr/providers.py
index 5e7d0e3..66b0ce2 100644
--- a/ankr/providers.py
+++ b/ankr/providers.py
@@ -1,8 +1,9 @@
 from __future__ import annotations
 
-from typing import Any, Iterable, List, Optional, Protocol, Type, TypeVar, Union
+from typing import Any, Iterable, List, Optional, Type, TypeVar, Union
 
 from eth_typing import URI
+from typing_extensions import Protocol
 from web3 import HTTPProvider
 from web3.types import RPCEndpoint, RPCResponse
 
diff --git a/poetry.lock b/poetry.lock
index 2e9f32b..693cea6 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -795,7 +795,7 @@ testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7.2"
-content-hash = "6aa573c25b189a60d08057c9a710a3b24db47c517cca9fc5a74f84d8298f80c4"
+content-hash = "3046898fb8c89a5f46e0e26a9f64daf3534bb8dc5065b2ec92acfbbf059e17c1"
 
 [metadata.files]
 aiohttp = [
diff --git a/pyproject.toml b/pyproject.toml
index 8dc12d0..47c4ff9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "ankr-sdk"
-version = "0.1.4"
+version = "0.2.0"
 description = "Compact Python library for interacting with Ankr's Advanced APIs."
 authors = ["Roman Fasakhov <romanfasakhov@ankr.com>"]
 license = "MIT License"
@@ -19,6 +19,7 @@ python = "^3.7.2"
 web3 = "^5.29.2"
 pydantic = "^1.9.1"
 pyhumps = "^3.7.2"
+typing-extensions = "^4.3.0"
 
 [tool.poetry.dev-dependencies]
 pytest = "^7.1.2"