diff --git a/telegram/_bot.py b/telegram/_bot.py
index 37241f70987..690d4e96228 100644
--- a/telegram/_bot.py
+++ b/telegram/_bot.py
@@ -3586,7 +3586,7 @@ async def get_updates(
         self,
         offset: int = None,
         limit: int = None,
-        timeout: float = None,
+        timeout: int = None,
         allowed_updates: Sequence[str] = None,
         *,
         read_timeout: float = 2,
@@ -3661,7 +3661,7 @@ async def get_updates(
             await self._post(
                 "getUpdates",
                 data,
-                read_timeout=read_timeout + timeout if timeout else read_timeout,
+                read_timeout=read_timeout + float(timeout) if timeout else read_timeout,
                 write_timeout=write_timeout,
                 connect_timeout=connect_timeout,
                 pool_timeout=pool_timeout,
diff --git a/telegram/ext/_application.py b/telegram/ext/_application.py
index 09c89222ff7..b1040e77544 100644
--- a/telegram/ext/_application.py
+++ b/telegram/ext/_application.py
@@ -673,7 +673,7 @@ def run_polling(
         Args:
             poll_interval (:obj:`float`, optional): Time to wait between polling updates from
                 Telegram in seconds. Default is ``0.0``.
-            timeout (:obj:`float`, optional): Passed to
+            timeout (:obj:`int`, optional): Passed to
                 :paramref:`telegram.Bot.get_updates.timeout`. Default is ``10`` seconds.
             bootstrap_retries (:obj:`int`, optional): Whether the bootstrapping phase of the
                 :class:`telegram.ext.Updater` will retry on failures on the Telegram server.
diff --git a/telegram/ext/_extbot.py b/telegram/ext/_extbot.py
index eea4ad963ae..a1583aa2962 100644
--- a/telegram/ext/_extbot.py
+++ b/telegram/ext/_extbot.py
@@ -531,7 +531,7 @@ async def get_updates(
         self,
         offset: int = None,
         limit: int = None,
-        timeout: float = None,
+        timeout: int = None,
         allowed_updates: Sequence[str] = None,
         *,
         read_timeout: float = 2,
diff --git a/telegram/ext/_updater.py b/telegram/ext/_updater.py
index 1318e6c7b0a..688f6df6574 100644
--- a/telegram/ext/_updater.py
+++ b/telegram/ext/_updater.py
@@ -202,7 +202,7 @@ async def start_polling(
         Args:
             poll_interval (:obj:`float`, optional): Time to wait between polling updates from
                 Telegram in seconds. Default is ``0.0``.
-            timeout (:obj:`float`, optional): Passed to
+            timeout (:obj:`int`, optional): Passed to
                 :paramref:`telegram.Bot.get_updates.timeout`. Defaults to ``10`` seconds.
             bootstrap_retries (:obj:`int`, optional): Whether the bootstrapping phase of the
                 :class:`telegram.ext.Updater` will retry on failures on the Telegram server.