diff --git a/qgis_deployment_toolbelt/plugins/plugin.py b/qgis_deployment_toolbelt/plugins/plugin.py
index 886d12f0..b88ef78e 100644
--- a/qgis_deployment_toolbelt/plugins/plugin.py
+++ b/qgis_deployment_toolbelt/plugins/plugin.py
@@ -11,6 +11,8 @@
 # ########## Libraries #############
 # ##################################
 
+# special
+from __future__ import annotations
 
 # Standard library
 import configparser
@@ -20,7 +22,6 @@
 from enum import Enum
 from os.path import expanduser, expandvars
 from pathlib import Path
-from sys import version_info
 from urllib.parse import quote, urlsplit, urlunsplit
 
 # 3rd party
@@ -30,12 +31,6 @@
 from qgis_deployment_toolbelt.utils.check_path import check_path
 from qgis_deployment_toolbelt.utils.slugger import sluggy
 
-# Imports depending on Python version
-if version_info[1] < 11:
-    from typing_extensions import Self
-else:
-    from typing import Self
-
 # #############################################################################
 # ########## Globals ###############
 # ##################################
@@ -80,14 +75,14 @@ class QgisPlugin:
     version: str = "latest"
 
     @classmethod
-    def from_dict(cls, input_dict: dict) -> Self:
+    def from_dict(cls, input_dict: dict) -> QgisPlugin:
         """Create object from a dictionary.
 
         Args:
             input_dict (dict): input dictionary
 
         Returns:
-            Self: instanciated object
+            QgisPlugin: instanciated object
         """
         # map attributes names
         for k, v in cls.ATTR_MAP.items():
@@ -129,14 +124,14 @@ def from_dict(cls, input_dict: dict) -> Self:
         )
 
     @classmethod
-    def from_plugin_folder(cls, input_plugin_folder: Path) -> Self:
+    def from_plugin_folder(cls, input_plugin_folder: Path) -> QgisPlugin:
         """Create object from a QGIS plugin folder. Must contain a metadata.txt file.
 
         Args:
             input_plugin_folder (Path): path to the folder containgin a QGIS plugin
 
         Returns:
-            Self: instanciated object
+            QgisPlugin: instanciated object
         """
         # check that input path is a folder
         check_path(
@@ -167,14 +162,14 @@ def from_plugin_folder(cls, input_plugin_folder: Path) -> Self:
         return cls.from_dict(plugin_md_as_dict)
 
     @classmethod
-    def from_zip(cls, input_zip_path: Path) -> Self:
+    def from_zip(cls, input_zip_path: Path) -> QgisPlugin:
         """Create object from a ZIP file.
 
         Args:
             input_zip_path (Path): filepath of the input zip
 
         Returns:
-            Self: instanciated object
+            QgisPlugin: instanciated object
         """
         with zipfile.ZipFile(file=input_zip_path) as zf:
             # find the metadata.txt file
@@ -254,12 +249,12 @@ def installation_folder_name(self) -> str:
         else:
             return sluggy(self.name)
 
-    def is_older_than(self, version_to_compare: str | Self) -> bool:
+    def is_older_than(self, version_to_compare: str | QgisPlugin) -> bool:
         """Determine if the actual object version is older than the given version to \
             compare.
 
         Args:
-            version_to_compare (Union[str, Self]): given version to compare with object version
+            version_to_compare (Union[str, QgisPlugin]): given version to compare with object version
 
         Returns:
             bool: True if the given version is newer (more recent)
diff --git a/qgis_deployment_toolbelt/profiles/qdt_profile.py b/qgis_deployment_toolbelt/profiles/qdt_profile.py
index 7a80edc9..503f91c7 100644
--- a/qgis_deployment_toolbelt/profiles/qdt_profile.py
+++ b/qgis_deployment_toolbelt/profiles/qdt_profile.py
@@ -11,19 +11,15 @@
 # ########## Libraries #############
 # ##################################
 
+# special
+from __future__ import annotations
+
 # standard
 import json
 import logging
 from pathlib import Path
-from sys import version_info
 from typing import Literal
 
-# Imports depending on Python version
-if version_info[1] < 11:
-    from typing_extensions import Self
-else:
-    from typing import Self
-
 # 3rd party
 from packaging.version import InvalidVersion, Version
 
@@ -135,7 +131,7 @@ def __init__(
     @classmethod
     def from_json(
         cls, profile_json_path: Path, profile_folder: Path | None = None
-    ) -> "QdtProfile":
+    ) -> QdtProfile:
         """Load profile from a profile.json file.
 
         Args:
@@ -301,12 +297,12 @@ def version(self) -> str:
         """
         return self._version
 
-    def is_older_than(self, version_to_compare: str | Self) -> bool:
+    def is_older_than(self, version_to_compare: str | QdtProfile) -> bool:
         """Determine if the actual object version is older than the given version to
             compare.
 
         Args:
-            version_to_compare (Union[str, Self]): given version to compare with object
+            version_to_compare (Union[str, QdtProfile]): given version to compare with object
             version
 
         Returns:
@@ -373,7 +369,7 @@ def status(self) -> Literal["downloaded", "installed", "unknown"]:
             return "unknown"
 
     @property
-    def installed_profile(self) -> "QdtProfile | None":
+    def installed_profile(self) -> QdtProfile | None:
         """Returns the installed profile object only if the corresponding profiles.json
             exists.
 
diff --git a/requirements/base.txt b/requirements/base.txt
index 644dcbc2..0d0bfc6a 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -6,4 +6,3 @@ packaging>=20,<24
 pyyaml>=5.4,<7
 pywin32==306 ; sys_platform == 'win32'
 requests>=2.31,<3
-typing-extensions>=4,<5 ; python_version < '3.11'