diff --git a/swh/storage/fixer.py b/swh/storage/fixer.py
--- a/swh/storage/fixer.py
+++ b/swh/storage/fixer.py
@@ -6,9 +6,9 @@
 import copy
 import datetime
 import logging
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, List
 
-from swh.model.model import Origin, TimestampWithTimezone
+from swh.model.model import Origin
 
 logger = logging.getLogger(__name__)
 
@@ -62,28 +62,7 @@
     return rev
 
 
-def _check_date(date):
-    """Returns whether the date can be represented in backends with sane
-    limits on timestamps and timezones (resp. signed 64-bits and
-    signed 16 bits), and that microseconds is valid (ie. between 0 and 10^6).
-    """
-    if date is None:
-        return True
-    try:
-        TimestampWithTimezone.from_dict(date)
-    except ValueError:
-        return False
-    else:
-        return True
-
-
-def _check_revision_date(rev):
-    """Exclude revisions with invalid dates.
-    See https://forge.softwareheritage.org/T1339"""
-    return _check_date(rev["date"]) and _check_date(rev["committer_date"])
-
-
-def _fix_revision(revision: Dict[str, Any]) -> Optional[Dict]:
+def _fix_revision(revision: Dict[str, Any]) -> Dict:
     """Fix various legacy revision issues.
 
     Fix author/committer person:
@@ -134,50 +113,9 @@
     [['time_offset_seconds', b'-3600'],
      ['transplant_source', b'29c154a012a70f49df983625090434587622b39e']]
 
-    Revision with invalid date are filtered:
-
-    >>> from copy import deepcopy
-    >>> invalid_date1 = deepcopy(date)
-    >>> invalid_date1['timestamp']['microseconds'] = 1000000000  # > 10^6
-    >>> rev = _fix_revision({
-    ...     'author': {'fullname': b'', 'name': '', 'email': ''},
-    ...     'committer': {'fullname': b'', 'name': '', 'email': ''},
-    ...     'date': invalid_date1,
-    ...     'committer_date': date,
-    ... })
-    >>> rev is None
-    True
-
-    >>> invalid_date2 = deepcopy(date)
-    >>> invalid_date2['timestamp']['seconds'] = 2**70  # > 10^63
-    >>> rev = _fix_revision({
-    ...     'author': {'fullname': b'', 'name': '', 'email': ''},
-    ...     'committer': {'fullname': b'', 'name': '', 'email': ''},
-    ...     'date': invalid_date2,
-    ...     'committer_date': date,
-    ... })
-    >>> rev is None
-    True
-
-    >>> invalid_date3 = deepcopy(date)
-    >>> invalid_date3['offset'] = 2**20  # > 10^15
-    >>> rev = _fix_revision({
-    ...     'author': {'fullname': b'', 'name': '', 'email': ''},
-    ...     'committer': {'fullname': b'', 'name': '', 'email': ''},
-    ...     'date': date,
-    ...     'committer_date': invalid_date3,
-    ... })
-    >>> rev is None
-    True
-
     """  # noqa
     rev = _fix_revision_pypi_empty_string(revision)
     rev = _fix_revision_transplant_source(rev)
-    if not _check_revision_date(rev):
-        logger.warning(
-            "Invalid revision date detected: %(revision)s", {"revision": rev}
-        )
-        return None
     return rev