diff --git a/.github/workflows/dev_test_publish.yml b/.github/workflows/dev_test_publish.yml
index 0341e38..5e09bba 100644
--- a/.github/workflows/dev_test_publish.yml
+++ b/.github/workflows/dev_test_publish.yml
@@ -32,7 +32,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v3
         with:
-          python-version: '3.9'
+          python-version: '3.12.4'
 
       - name: Install latest PIP
         run: |
@@ -62,7 +62,7 @@ jobs:
         - name: Set up Python
           uses: actions/setup-python@v3
           with:
-            python-version: '3.9'
+            python-version: '3.12.4'
 
         - name: Install latest pip, setuptools, twine + wheel
           run: |
diff --git a/.github/workflows/main_test_publish.yml b/.github/workflows/main_test_publish.yml
index 9633001..e7b9e2d 100644
--- a/.github/workflows/main_test_publish.yml
+++ b/.github/workflows/main_test_publish.yml
@@ -30,7 +30,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v3
         with:
-          python-version: '3.9'
+          python-version: '3.12.4'
 
       - name: Install latest PIP
         run: |
@@ -58,7 +58,7 @@ jobs:
         - name: Set up Python
           uses: actions/setup-python@v3
           with:
-            python-version: '3.9'
+            python-version: '3.12.4'
 
         - name: Install latest pip, setuptools, twine + wheel
           run: |
diff --git a/setup.py b/setup.py
index d2ca4b8..14b8e32 100755
--- a/setup.py
+++ b/setup.py
@@ -55,8 +55,6 @@
 
         'License :: OSI Approved :: MIT License',
 
-        'Programming Language :: Python :: 3.8',
-        'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12'
diff --git a/src/factiva/analytics/auth/accountinfo.py b/src/factiva/analytics/auth/accountinfo.py
index e2f9d2f..47a0a51 100755
--- a/src/factiva/analytics/auth/accountinfo.py
+++ b/src/factiva/analytics/auth/accountinfo.py
@@ -4,7 +4,6 @@
 """
 import json
 import pandas as pd
-from typing import Union
 from ..common import log, req, tools, const, config
 from ..auth import UserKey
 from ..snapshots import SnapshotExtractionList
@@ -38,7 +37,7 @@ class AccountInfo:
     extractions_list: SnapshotExtractionList = None
 
 
-    def __init__(self, user_key: Union[UserKey, str]):
+    def __init__(self, user_key: UserKey | str=None):
         """
         Construct the instance of the class