diff --git a/.github/workflows/test-pr.yml b/.github/workflows/test-pr.yml
index ced22a3..606ad85 100644
--- a/.github/workflows/test-pr.yml
+++ b/.github/workflows/test-pr.yml
@@ -3,20 +3,43 @@ name: test-pr
 on:
   pull_request:
     branches:
-      - "main"
+      - main
+  push:
+    branches:
+      - main
+      - test-ci**
+  workflow_dispatch: # Enable workflow to be run manually
+
+# Disable all access to the GitHub API by default
+# This default can be overridden for individual workflows and jobs
+# Documentation: https://docs.github.com/en/actions/writing-workflows/workflow-syntax-for-github-actions#permissions
+permissions: {}
+
+# Cancel the currently running CI job if you push a change while CI is running
+# Documentation: https://docs.github.com/en/actions/using-jobs/using-concurrency
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04 # Needed for Python 3.7
+    name: Run tests
+    env:
+      PYTHON_VERSION: 3.7.17
+    defaults:
+      run:
+        shell: bash -leo pipefail {0}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Set Up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
-          python-version: "3.7"
+          python-version: ${{ env.PYTHON_VERSION }}
       - name: Install daidepp
         run: |
+          pip install -U pip
           pip install -e .[dev]
       - name: Test
         run: |
diff --git a/setup.cfg b/setup.cfg
index 4c45ca3..e050429 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -15,23 +15,24 @@ python_requires = >=3.7
 install_requires =
     parsimonious==0.9.0
     importlib-metadata>=1.4.0 ; python_version < "3.8"
+    typing_extensions>=3.10.0.0 ; python_version < "3.8"
 
 [options.packages.find]
 where = src
 
 [options.extras_require]
 dev =
-    black>=22.8.0
-    docformatter==1.4
-    isort>=5.10.1
-    pydocstyle==6.1.1
-    pylint==2.12.2
-    pytest==7.0.0
-    pytest-black==0.3.12
-    pytest-cov==3.0.0
-    pytest-dependency==0.5.1
-    pytest-mypy==0.9.1
-    pytest-timeout==2.1.0
+    black==23.3.0
+    docformatter==1.7.5
+    isort==5.11.5
+    pydocstyle==6.3.0
+    pylint==2.17.7
+    pytest==7.4.4
+    pytest-black==0.6.0
+    pytest-cov==4.1.0
+    pytest-dependency==0.6.0
+    pytest-mypy==0.10.3
+    pytest-timeout==2.3.1
 
 [isort]
 multi_line_output = 3
diff --git a/src/daidepp/constants.py b/src/daidepp/constants.py
index ecd918b..e9c231b 100644
--- a/src/daidepp/constants.py
+++ b/src/daidepp/constants.py
@@ -1,4 +1,7 @@
-from typing_extensions import Literal
+try:
+    from typing import Literal
+except ImportError:
+    from typing_extensions import Literal
 
 Power = Literal["AUS", "ENG", "FRA", "GER", "ITA", "RUS", "TUR"]
 UnitType = Literal["AMY", "FLT"]
diff --git a/src/daidepp/grammar/grammar.py b/src/daidepp/grammar/grammar.py
index c798c61..dd8db31 100644
--- a/src/daidepp/grammar/grammar.py
+++ b/src/daidepp/grammar/grammar.py
@@ -5,9 +5,11 @@
 from __future__ import annotations
 
 from typing import Dict, Tuple
-from typing_extensions import get_args
 
-from typing_extensions import Literal
+try:
+    from typing import Literal, get_args
+except ImportError:
+    from typing_extensions import Literal, get_args
 
 DAIDELevel = Literal[
     0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160
diff --git a/src/daidepp/grammar/grammar_utils.py b/src/daidepp/grammar/grammar_utils.py
index 4bfae0c..6618b87 100644
--- a/src/daidepp/grammar/grammar_utils.py
+++ b/src/daidepp/grammar/grammar_utils.py
@@ -3,7 +3,11 @@
 from typing import Dict, List, Optional, Set, Tuple, Union
 
 from parsimonious.grammar import Grammar
-from typing_extensions import Literal
+
+try:
+    from typing import Literal
+except ImportError:
+    from typing_extensions import Literal
 
 from daidepp.constants import PressKeywords
 from daidepp.grammar.grammar import (
diff --git a/src/daidepp/keywords/base_keywords.py b/src/daidepp/keywords/base_keywords.py
index c36ac0d..ba2f7b6 100644
--- a/src/daidepp/keywords/base_keywords.py
+++ b/src/daidepp/keywords/base_keywords.py
@@ -3,7 +3,10 @@
 from dataclasses import dataclass
 from typing import Optional, Tuple, Union
 
-from typing_extensions import get_args
+try:
+    from typing import get_args
+except ImportError:
+    from typing_extensions import get_args
 
 from daidepp.constants import *
 from daidepp.keywords.daide_object import _DAIDEObject
diff --git a/src/daidepp/visitor.py b/src/daidepp/visitor.py
index 924ba99..a7beed8 100644
--- a/src/daidepp/visitor.py
+++ b/src/daidepp/visitor.py
@@ -2,7 +2,11 @@
 from typing import Any
 
 from parsimonious.nodes import Node, NodeVisitor
-from typing_extensions import get_args
+
+try:
+    from typing import get_args
+except ImportError:
+    from typing_extensions import get_args
 
 from daidepp.constants import ProvinceNoCoast
 from daidepp.keywords.base_keywords import *
diff --git a/tests/conftest.py b/tests/conftest.py
index 4b623c0..8c63bb2 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,5 +1,9 @@
 import pytest
-from typing_extensions import get_args
+
+try:
+    from typing import get_args
+except ImportError:
+    from typing_extensions import get_args
 
 from daidepp.grammar import create_daide_grammar
 from daidepp.grammar.grammar import DAIDELevel, MAX_DAIDE_LEVEL