diff --git a/.github/CHANGELOG.md b/.github/CHANGELOG.md
index c4a7fc0e..7800ef93 100644
--- a/.github/CHANGELOG.md
+++ b/.github/CHANGELOG.md
@@ -22,6 +22,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added readme overview page in the docs
 - Added Privacy Policy in the docs. It is referenced in the bot **/start** command
 - Use mermaid to generate entity relationship diagrams in the docs
+- Bump python-telegram-bot to version 2.8
 
 ## [3.0.0] - 2023-11-30
 
diff --git a/pyproject.toml b/pyproject.toml
index e3f0b4a2..9d55ed7c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,20 +36,11 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 dependencies = [
-    "anyio==4.0.0",
     "APScheduler==3.10.4",
-    "certifi==2023.7.22",
     "cryptography==41.0.7",
-    "h11==0.14.0",
-    "httpcore==0.18.0",
-    "httpx==0.25.0",
-    "idna==3.4",
-    "python-telegram-bot==20.6",
+    "python-telegram-bot==20.8",
     "pytz==2023.3.post1",
     "PyYAML==6.0.1",
-    "six==1.16.0",
-    "sniffio==1.3.0",
-    "tzlocal==5.2",
 ]
 dynamic = ['version']
 
diff --git a/tests/integration/telegram_api.py b/tests/integration/telegram_api.py
index f3dd4604..fb26d2f5 100644
--- a/tests/integration/telegram_api.py
+++ b/tests/integration/telegram_api.py
@@ -84,8 +84,8 @@ def post(self, endpoint: str, data: dict) -> dict | bool | None:
 
     def __send_message(self, data: "MessageData") -> dict:
         reply_message = None
-        if "reply_to_message_id" in data and data["reply_to_message_id"] is not None:
-            reply_message = self.__simulator.get_message_by_id(data["reply_to_message_id"])
+        if "reply_parameters" in data and data["reply_parameters"] is not None:
+            reply_message = self.__simulator.get_message_by_id(data["reply_parameters"].message_id)
         message = Message(
             message_id=data.get("message_id", self.get_next_id()),
             date=datetime.now().timestamp(),
@@ -148,7 +148,7 @@ def __copy_message(self, data: "MessageData") -> dict:
         return message_dict
 
     def __delete_message(self, data: "MessageData") -> bool:
-        self.__simulator.delete_messaegge(data["message_id"])
+        self.__simulator.delete_message(data["message_id"])
         return True
 
     def __get_me(self) -> dict:
diff --git a/tests/integration/telegram_simulator.py b/tests/integration/telegram_simulator.py
index 43fcb32c..dee58390 100644
--- a/tests/integration/telegram_simulator.py
+++ b/tests/integration/telegram_simulator.py
@@ -382,7 +382,7 @@ def add_message(self, message: Message):
         """
         self.messages.append(message)
 
-    def delete_messaegge(self, message: int | Message):
+    def delete_message(self, message: int | Message):
         """Removes a message from the list of messages
 
         Args: