diff --git a/telethon/client/downloads.py b/telethon/client/downloads.py
index 84a3d601..3c9fa2d1 100644
--- a/telethon/client/downloads.py
+++ b/telethon/client/downloads.py
@@ -80,7 +80,7 @@ class _DirectDownloadIter(RequestIter):
             else:
                 return result.bytes
 
-        except errors.TimeoutError as e:
+        except errors.TimedOutError as e:
             if self._timed_out:
                 self.client._log[__name__].warning('Got two timeouts in a row while downloading file')
                 raise
diff --git a/telethon/client/updates.py b/telethon/client/updates.py
index 450a9e16..f06b28e8 100644
--- a/telethon/client/updates.py
+++ b/telethon/client/updates.py
@@ -308,7 +308,7 @@ class UpdateMethods:
                         diff = await self(get_diff)
                     except (
                         errors.ServerError,
-                        errors.TimeoutError,
+                        errors.TimedOutError,
                         errors.FloodWaitError,
                         ValueError
                     ) as e:
@@ -384,7 +384,7 @@ class UpdateMethods:
                         errors.PersistentTimestampOutdatedError,
                         errors.PersistentTimestampInvalidError,
                         errors.ServerError,
-                        errors.TimeoutError,
+                        errors.TimedOutError,
                         errors.FloodWaitError,
                         ValueError
                     ) as e:
diff --git a/telethon/version.py b/telethon/version.py
index 904ff1bc..5398b711 100644
--- a/telethon/version.py
+++ b/telethon/version.py
@@ -1,3 +1,3 @@
 # Versions should comply with PEP440.
 # This line is parsed in setup.py:
-__version__ = '1.29.2'
+__version__ = '1.29.3'
diff --git a/telethon_generator/data/errors.csv b/telethon_generator/data/errors.csv
index a6c7514d..9f4e18c4 100644
--- a/telethon_generator/data/errors.csv
+++ b/telethon_generator/data/errors.csv
@@ -464,6 +464,7 @@ TTL_MEDIA_INVALID,400,The provided media cannot be used with a TTL
 TTL_PERIOD_INVALID,400,The provided TTL Period is invalid
 TYPES_EMPTY,400,The types field is empty
 TYPE_CONSTRUCTOR_INVALID,400,The type constructor is invalid
+Timedout,-503,Timeout while fetching data
 Timeout,-503,Timeout while fetching data
 UNKNOWN_ERROR,400,
 UNKNOWN_METHOD,500,The method you tried to call cannot be called on non-CDN DCs