diff --git a/.github/workflows/pipeline.yml b/.github/workflows/pipeline.yml
index 191cb64..8a2c3d5 100644
--- a/.github/workflows/pipeline.yml
+++ b/.github/workflows/pipeline.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
diff --git a/connexion/apps/flask.py b/connexion/apps/flask.py
index 1bb1e22..a584c34 100644
--- a/connexion/apps/flask.py
+++ b/connexion/apps/flask.py
@@ -79,7 +79,7 @@ class FlaskApi(AbstractRoutingAPI):
         self._set_blueprint()
 
     def _set_blueprint(self):
-        endpoint = flask_utils.flaskify_endpoint(self.base_path)
+        endpoint = flask_utils.flaskify_endpoint(self.base_path) or "/"
         self.blueprint = flask.Blueprint(
             endpoint,
             __name__,
diff --git a/connexion/cli.py b/connexion/cli.py
index 66be77c..9af86c6 100644
--- a/connexion/cli.py
+++ b/connexion/cli.py
@@ -3,6 +3,7 @@ This module defines a command-line interface (CLI) that runs an OpenAPI specific
 starting point for developing your API with Connexion.
 """
 
+import importlib.metadata
 import logging
 import sys
 from os import path
@@ -13,11 +14,6 @@ from clickclick import AliasedGroup
 import connexion
 from connexion.mock import MockResolver
 
-try:
-    import importlib_metadata
-except ImportError:
-    import importlib.metadata as importlib_metadata  # type: ignore
-
 logger = logging.getLogger("connexion.cli")
 
 FLASK_APP = "flask"
@@ -35,7 +31,7 @@ app = None
 def print_version(ctx, param, value):
     if not value or ctx.resilient_parsing:
         return
-    click.echo(f"Connexion {importlib_metadata.version('connexion')}")
+    click.echo(f"Connexion {importlib.metadata.version('connexion')}")
     ctx.exit()
 
 
diff --git a/pyproject.toml b/pyproject.toml
index c1fcac8..9f56ca8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,11 +26,11 @@ classifiers = [
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.7",
     "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",
     "Topic :: Internet",
     "Topic :: Internet :: WWW/HTTP",
     "Topic :: Internet :: WWW/HTTP :: HTTP Servers",
@@ -44,11 +44,10 @@ classifiers = [
 connexion = 'connexion.cli:main'
 
 [tool.poetry.dependencies]
-python = '^3.7'
+python = '^3.8'
 asgiref = ">= 3.4"
 clickclick = ">= 1.2"
 httpx = ">= 0.23"
-importlib_metadata = { version = ">=6.0.0", python = "<3.8" }
 inflection = ">= 0.3.1"
 jsonschema = ">= 4.0.1"
 Jinja2 = ">= 3.0.0"
diff --git a/tests/decorators/test_parameter.py b/tests/decorators/test_parameter.py
index dd404d0..4efcf50 100644
--- a/tests/decorators/test_parameter.py
+++ b/tests/decorators/test_parameter.py
@@ -1,11 +1,5 @@
 import sys
-from unittest.mock import MagicMock
-
-try:
-    from unittest.mock import AsyncMock
-except ImportError:
-    # Python 3.7
-    AsyncMock = None
+from unittest.mock import AsyncMock, MagicMock
 
 import pytest
 from connexion.decorators.parameter import (
diff --git a/tests/test_api.py b/tests/test_api.py
index 998f8ee..4c9a408 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -39,7 +39,7 @@ def test_api():
 
 def test_api_base_path_slash():
     api = FlaskApi(TEST_FOLDER / "fixtures/simple/basepath-slash.yaml")
-    assert api.blueprint.name == ""
+    assert api.blueprint.name == "/"
     assert api.blueprint.url_prefix == ""
 
 
diff --git a/tox.ini b/tox.ini
index d752579..6c036fa 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,15 +9,17 @@ extend-ignore=E203,RST303
 [tox]
 isolated_build = True
 envlist =
-    {py37,py38,py39,py310}-{min,pypi}
+    py38-min
+    {py38,py39,py310,py311,py312}-pypi
     pre-commit
 
 [gh-actions]
 python =
-    3.7: py37-min,py37-pypi
     3.8: py38-min,py38-pypi
-    3.9: py39-min,py39-pypi
-    3.10: py310-min,py310-pypi,pre-commit
+    3.9: py39-pypi
+    3.10: py310-pypi
+    3.11: py311-pypi,pre-commit
+    3.12: py312-pypi
 
 [testenv]
 setenv=PYTHONPATH = {toxinidir}:{toxinidir}