diff --git a/game/ato/flightplans/sweep.py b/game/ato/flightplans/sweep.py
index 8f366eee..b239d46e 100644
--- a/game/ato/flightplans/sweep.py
+++ b/game/ato/flightplans/sweep.py
@@ -93,6 +93,7 @@ class SweepFlightPlan(LoiterFlightPlan):
     def mission_begin_on_station_time(self) -> datetime | None:
         return None
 
+    @property
     def mission_departure_time(self) -> datetime:
         return self.sweep_end_time
 
diff --git a/game/commander/tasks/packageplanningtask.py b/game/commander/tasks/packageplanningtask.py
index 8dcca037..36b11680 100644
--- a/game/commander/tasks/packageplanningtask.py
+++ b/game/commander/tasks/packageplanningtask.py
@@ -31,8 +31,7 @@ class RangeType(IntEnum):
 
 
 # TODO: Refactor so that we don't need to call up to the mission planner.
-# Bypass type checker due to https://github.com/python/mypy/issues/5374
-@dataclass  # type: ignore
+@dataclass
 class PackagePlanningTask(TheaterCommanderTask, Generic[MissionTargetT]):
     target: MissionTargetT
     flights: list[ProposedFlight] = field(init=False)
diff --git a/requirements.txt b/requirements.txt
index 7d8d5bd8..01a9b1e3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,8 +21,8 @@ idna==3.4
 iniconfig==1.1.1
 Jinja2==3.1.2
 MarkupSafe==2.1.1
-mypy==0.961
-mypy-extensions==0.4.3
+mypy==1.2.0
+mypy-extensions==1.0.0
 nodeenv==1.7.0
 packaging==22.0
 pathspec==0.10.3
@@ -31,7 +31,7 @@ Pillow==9.3.0
 platformdirs==2.6.2
 pluggy==1.0.0
 pre-commit==2.21.0
-pydantic==1.10.3
+pydantic==1.10.7
 -e git+https://github.com/pydcs/dcs@832c8a361319553cb6f2b46f5b2542180b7f72b6#egg=pydcs
 pyinstaller==5.7.0
 pyinstaller-hooks-contrib==2022.14