diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c7a7acea..d79d4860 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,6 +13,7 @@ jobs:
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12"
       fail-fast: false
     steps:
       - uses: actions/checkout@v4
diff --git a/setup.py b/setup.py
index b8d7dd55..669a0b5e 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@
     version=versioneer.get_version(),
     cmdclass=versioneer.get_cmdclass(),
     packages=find_packages(exclude=("tests", "docs")),
-    python_requires=">=3.7",
+    python_requires=">=3.8",
     install_requires=install_requires,
     entry_points={
         "prefect.collections": [
@@ -38,10 +38,11 @@
         "Intended Audience :: System Administrators",
         "License :: OSI Approved :: Apache Software License",
         "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 :: Software Development :: Libraries",
     ],
 )
diff --git a/tests/test_client_waiter.py b/tests/test_client_waiter.py
index 0c3d27e2..1a764e42 100644
--- a/tests/test_client_waiter.py
+++ b/tests/test_client_waiter.py
@@ -9,7 +9,7 @@
 
 @pytest.fixture
 def mock_waiter(monkeypatch):
-    waiter = MagicMock()
+    waiter = MagicMock(name="mock_waiter")
     monkeypatch.setattr(
         "prefect_aws.client_waiter.create_waiter_with_client",
         waiter,
@@ -44,7 +44,7 @@ def test_flow():
         return waiter
 
     test_flow()
-    assert mock_waiter.wait.called_once_with("JobExists")
+    mock_waiter().wait.assert_called_once_with()
 
 
 @mock_ec2
@@ -66,4 +66,4 @@ def test_flow():
         return waiter
 
     test_flow()
-    assert mock_waiter.wait.called_once_with("instance_exists")
+    mock_waiter.wait.assert_called_once_with()