diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 3d3a273..6f6415e 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -25,7 +25,7 @@ jobs:
         pipenv install --dev
       
     - name: Check formatting
-      run: pipenv run black --target-version=py310 .
+      run: pipenv run black --target-version=py311 .
 
     - name: Check types
       run: pipenv run mypy rps rps-sim.py
diff --git a/rps-sim.py b/rps-sim.py
index 5faebdc..d2a89fb 100644
--- a/rps-sim.py
+++ b/rps-sim.py
@@ -5,9 +5,13 @@
 from rps.game import play_games
 
 
-
 @click.command
-@click.option("--games", default=3, type=click.IntRange(min=1, max=1000), help="Number of games to play")
+@click.option(
+    "--games",
+    default=3,
+    type=click.IntRange(min=1, max=1000),
+    help="Number of games to play",
+)
 @click.option("--p1-name", default="Player 1", help="Name of first player")
 @click.option("--p2-name", default="Player 2", help="Name of second player")
 def simple_sim(games: int, p1_name: str, p2_name: str) -> None:
@@ -22,5 +26,5 @@ def simple_sim(games: int, p1_name: str, p2_name: str) -> None:
     print("Simulation finished.")
 
 
-if __name__ == '__main__':
-    simple_sim()
\ No newline at end of file
+if __name__ == "__main__":
+    simple_sim()
diff --git a/rps/game.py b/rps/game.py
index 7899698..d0a7962 100644
--- a/rps/game.py
+++ b/rps/game.py
@@ -1,13 +1,16 @@
 from .player import Player
 from .play import PlayResult
 
+
 def play_game(firstPlayer: Player, secondPlayer: Player) -> PlayResult:
     firstPlay = firstPlayer.play()
     secondPlay = secondPlayer.play()
     return firstPlay.match(secondPlay)
 
 
-def play_games(firstPlayer: Player, secondPlayer: Player, times: int) -> list[PlayResult]:
+def play_games(
+    firstPlayer: Player, secondPlayer: Player, times: int
+) -> list[PlayResult]:
     results = []
     for _ in range(times):
         results.append(play_game(firstPlayer, secondPlayer))
diff --git a/rps/player.py b/rps/player.py
index f20ed59..925cb2f 100644
--- a/rps/player.py
+++ b/rps/player.py
@@ -17,5 +17,5 @@ def __init__(self, play_strategy: PlaySelectionStrategy, name: str = "Bot Player
         self.__strategy = play_strategy
         self.name = name
 
-    def play(self)  -> Play:
+    def play(self) -> Play:
         return self.__strategy.play()