diff --git a/.github/workflows/coverage.yaml b/.github/workflows/coverage.yaml
index 3578c60..5b97c68 100644
--- a/.github/workflows/coverage.yaml
+++ b/.github/workflows/coverage.yaml
@@ -20,7 +20,6 @@ jobs:
     - name: Install dependencies
       run: |
           python -m pip install --upgrade pip
-          pip install -r ./requirements.txt
           pip install coverage
     - name: Test with coverage
       run: |
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 406fab1..714ea90 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -28,7 +28,6 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install setuptools wheel
-          pip install -r ./requirements.txt
       - name: Set version env
         run: |
           echo "LIBRARY_VERSION=$(python -c "import sys; sys.path.append('.'); from zabbix_utils.version import __version__; print(__version__)")" >> $GITHUB_ENV
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 19fbfb8..b4b085d 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -32,7 +32,6 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r ./requirements.txt
         pip install -r ./requirements-dev.txt
         pip install coverage
     - name: Lint with flake8
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6810e9a..42874fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## [1.1.1](https://github.com/zabbix/python-zabbix-utils/compare/v1.1.0...v1.1.1) (2024-03-06)
+
+### Changes:
+
+- removed external requirements
+
 ## [1.1.0](https://github.com/zabbix/python-zabbix-utils/compare/v1.0.3...v1.1.0) (2024-01-23)
 
 ### Breaking Changes: 
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index ec23086..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-typing_extensions>=4.0.0;python_version<"3.11"
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 27cd3bc..48cb667 100644
--- a/setup.py
+++ b/setup.py
@@ -45,7 +45,7 @@
     test_suite='tests',
     packages=["zabbix_utils"],
     tests_require=["unittest"],
-    install_requires=["typing_extensions>=4.0.0;python_version<'3.11'"],
+    install_requires=[],
     python_requires='>=3.8',
     project_urls={
         'Zabbix': 'https://www.zabbix.com/documentation/current',
diff --git a/zabbix_utils/api.py b/zabbix_utils/api.py
index a20a3f8..7f7a6ee 100644
--- a/zabbix_utils/api.py
+++ b/zabbix_utils/api.py
@@ -35,11 +35,6 @@
 from urllib.error import URLError
 
 from typing import Callable, Union, Any, List
-# For Python less 3.11 compatibility
-try:
-    from typing import Self  # type: ignore
-except ImportError:
-    from typing_extensions import Self
 
 from .common import ModuleUtils
 from .logger import EmptyHandler, SensitiveFilter
@@ -74,7 +69,7 @@ def __getattr__(self, name: str) -> Callable:
             TypeError: Raises if gets unexpected arguments.
 
         Returns:
-            Self: Zabbix API method.
+            Callable: Zabbix API method.
         """
 
         # For compatibility with Python less 3.9 versions
@@ -256,13 +251,13 @@ def __getattr__(self, name: str) -> Callable:
 
         return APIObject(name, self)
 
-    def __enter__(self) -> Self:
+    def __enter__(self) -> Callable:
         return self
 
     def __exit__(self, *args) -> None:
         self.logout()
 
-    def __basic_auth(self, user: str, password: str) -> Self:
+    def __basic_auth(self, user: str, password: str) -> None:
         """Enable Basic Authentication using.
 
         Args:
@@ -302,7 +297,7 @@ def version(self) -> APIVersion:
         return self.api_version()
 
     def login(self, token: Union[str, None] = None, user: Union[str, None] = None,
-              password: Union[str, None] = None) -> Self:
+              password: Union[str, None] = None) -> None:
         """Login to Zabbix API.
 
         Args:
diff --git a/zabbix_utils/sender.py b/zabbix_utils/sender.py
index b3ac67f..a9cc668 100644
--- a/zabbix_utils/sender.py
+++ b/zabbix_utils/sender.py
@@ -30,11 +30,6 @@
 from decimal import Decimal
 
 from typing import Callable, Union
-# For Python less 3.11 compatibility
-try:
-    from typing import Self  # type: ignore
-except ImportError:
-    from typing_extensions import Self
 
 from .logger import EmptyHandler
 from .common import ZabbixProtocol
@@ -100,7 +95,7 @@ def parse(self, response: dict) -> dict:
 
         return res
 
-    def add(self, response: dict, chunk: Union[int, None] = None) -> Self:
+    def add(self, response: dict, chunk: Union[int, None] = None):
         """Add and merge response data from Zabbix.
 
         Args:
@@ -285,7 +280,7 @@ def nodes(self) -> list:
         """Returns list of Node objects.
 
         Returns:
-            list List of Node objects
+            list: List of Node objects
         """
 
         return self.__nodes
diff --git a/zabbix_utils/version.py b/zabbix_utils/version.py
index 56ac25d..4d17b80 100644
--- a/zabbix_utils/version.py
+++ b/zabbix_utils/version.py
@@ -22,7 +22,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 # OTHER DEALINGS IN THE SOFTWARE.
 
-__version__ = "1.1.0"
+__version__ = "1.1.1"
 
 __min_supported__ = 5.0
 __max_supported__ = 7.0