diff --git a/.github/workflows/ci_tools_map_syncer.yaml b/.github/workflows/ci_tools_map_syncer.yaml
index 14f8c27..34e2033 100644
--- a/.github/workflows/ci_tools_map_syncer.yaml
+++ b/.github/workflows/ci_tools_map_syncer.yaml
@@ -38,6 +38,6 @@ jobs:
       - name: Check Types
         run: mypy
       - name: Lint
-        run: ruff . --format=github
+        run: ruff check --output-format=github .
       - name: Test
         run: pytest
diff --git a/tools/map_syncer/map_syncer.py b/tools/map_syncer/map_syncer.py
index 0842179..9cc3bd7 100755
--- a/tools/map_syncer/map_syncer.py
+++ b/tools/map_syncer/map_syncer.py
@@ -182,7 +182,7 @@ class SyncOp(Enum):
     STOP = 2
 
 
-if TYPE_CHECKING:  # noqa: SIM108
+if TYPE_CHECKING:
     SyncQueue = queue.Queue[Tuple[SyncOp, str]]
 else:
     SyncQueue = queue.Queue
diff --git a/tools/map_syncer/map_syncer_test.py b/tools/map_syncer/map_syncer_test.py
index a946e24..305930d 100644
--- a/tools/map_syncer/map_syncer_test.py
+++ b/tools/map_syncer/map_syncer_test.py
@@ -226,7 +226,7 @@ def test_poller_starts_sync_correctly(mocker: MockerFixture) -> None:
     sync_trigger: map_syncer.SyncQueue = queue.Queue()
     t = threading.Thread(
         target=lambda: map_syncer.polling_sync(
-            pathlib.Path(""), "", 0, sync_trigger, "http://x.com/health"
+            pathlib.Path(), "", 0, sync_trigger, "http://x.com/health"
         )
     )
     t.start()
@@ -245,7 +245,7 @@ def test_poller_catches_exceptions(mocker: MockerFixture) -> None:
     sync_files.side_effect = RuntimeError("test")
     sync_trigger: map_syncer.SyncQueue = queue.Queue()
     t = threading.Thread(
-        target=lambda: map_syncer.polling_sync(pathlib.Path(""), "", 0, sync_trigger)
+        target=lambda: map_syncer.polling_sync(pathlib.Path(), "", 0, sync_trigger)
     )
     t.start()
     sync_trigger.put((map_syncer.SyncOp.SYNC, "A"))
@@ -260,7 +260,7 @@ def test_poller_ignores_duplicate_requests(mocker: MockerFixture) -> None:
     sync_files = mocker.patch("map_syncer.sync_files")
     sync_trigger: map_syncer.SyncQueue = queue.Queue()
     t = threading.Thread(
-        target=lambda: map_syncer.polling_sync(pathlib.Path(""), "", 0, sync_trigger)
+        target=lambda: map_syncer.polling_sync(pathlib.Path(), "", 0, sync_trigger)
     )
     t.start()
     for _ in range(10):
@@ -322,7 +322,8 @@ def test_sync_files_deletes_only_old(live_maps_url: str, fs: FakeFilesystem) ->
     assert fs.exists(d / "map_old_1.sd7")
     assert not fs.exists(d / "map_old_2.sd7")
     assert cast(
-        Dict[str, int], json.loads(fs.get_object(d / "tombstones.json").contents)
+        Dict[str, int],
+        json.loads(fs.get_object(d / "tombstones.json").contents or "{}"),
     ) == {
         "map_old_1.sd7": initial_tombstones["map_old_1.sd7"],
     }
diff --git a/tools/map_syncer/requirements.txt b/tools/map_syncer/requirements.txt
index 28682ee..3423904 100644
--- a/tools/map_syncer/requirements.txt
+++ b/tools/map_syncer/requirements.txt
@@ -1,11 +1,11 @@
-black>=23.3.0
-isort>=5.12.0
-mypy>=1.4.1
+black==23.11.0
+isort==5.12.0
+mypy==1.7.1
 paho-mqtt>=1.6.1
-pyfakefs>=5.2.2
+pyfakefs>=5.3.1
 pytest-httpserver>=1.0.8
-pytest-mock>=3.11.1
-pytest-mqtt>=0.2.0
-pytest>=7.4.0
-ruff>=0.0.277
-types-paho-mqtt>=1.6.0.6
+pytest-mock>=3.12.0
+pytest-mqtt>=0.3.1
+pytest>=7.4.3
+ruff==0.1.6
+types-paho-mqtt>=1.6.0.7