diff --git a/CHANGES.rst b/CHANGES.rst
index 4ff1a3a4..fd1b299a 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -14,6 +14,10 @@ Features / Changes
 * Add CLI helper ``batch_update_permissions`` that allows registering one or more `Permission` configuration files
   against a running `Magpie` instance.
 * Security fix: bump Docker base ``python:3.11-alpine3.19``.
+* Update ``authomatic[OpenID]==1.3.0`` to resolve temporary workarounds
+  (relates to `authomatic/authomatic#195 <https://github.com/authomatic/authomatic/issues/195>`_
+  and `authomatic/authomatic#233 <https://github.com/authomatic/authomatic/issues/233>`_,
+  fixes `#583 <https://github.com/Ouranosinc/Magpie/issues/583>`_).
 
 Bug Fixes
 ~~~~~~~~~
diff --git a/magpie/__init__.py b/magpie/__init__.py
index 7b94770a..6db44252 100644
--- a/magpie/__init__.py
+++ b/magpie/__init__.py
@@ -7,16 +7,6 @@
 
 import sys
 
-# FIXME: patch workaround for Python 3.12 issue with vendor-specific 'six.moves'
-#   Inspired from https://github.com/dpkp/kafka-python/issues/2401#issuecomment-1760208950
-#   Applied here such that anything importing 'magpie' does it first, to avoid patch everywhere importing 'authomatic'.
-#   Official fix required (see https://github.com/authomatic/authomatic/issues/233).
-if sys.version_info >= (3, 12, 0):
-    import six
-    sys.modules["authomatic.six.moves"] = six.moves
-    sys.modules["authomatic.six.moves.urllib"] = six.moves.urllib
-    sys.modules["authomatic.six.moves.urllib.parse"] = six.moves.urllib.parse
-
 
 def includeme(config):
     # import needs to be here, otherwise ImportError happens during setup.py install (modules not yet installed)
diff --git a/requirements.txt b/requirements.txt
index a267244c..cea426e4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,16 +1,6 @@
 -r requirements-sys.txt
 alembic>=1.10
-# TODO: remove when merged
-#   until fix merged and deployed (https://github.com/authomatic/authomatic/pull/195)
-#   old variants:
-#       -e git+https://github.com/fmigneault/authomatic.git@httplib-port#egg=Authomatic
-#       https://github.com/fmigneault/authomatic/archive/httplib-port.zip#egg=Authomatic-1.0.1
-#   - new authomatic handles openid install correctly
-#   - https://github.com/authomatic/authomatic/tree/master includes #195 (http-po#rt)
-#     via https://github.com/authomatic/authomatic/pull/227
-#     However, this is not the latest tag https://github.com/authomatic/authomatic/tree/1.2.1 (done before #227).
-#   - Requires https://github.com/authomatic/authomatic/issues/233 for Python 3.12 (temporary patch in magpie.__init__)
-authomatic[OpenID] @ https://github.com/fmigneault/authomatic/archive/httplib-port.zip
+authomatic[OpenID]==1.3.0
 bcrypt>=3.1.6
 # FIXME: integrate when implemnted by official package (see https://github.com/bbangert/beaker/issues/201)
 beaker @ https://github.com/crim-ca/beaker/archive/0ac88bcd8cca063a571fc385ffbe9bcc8acaa690.zip