diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f071bd2..326ea9b 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/psf/black
-    rev: 23.3.0
+    rev: 23.1.0
     hooks:
       - id: black
   - repo: https://github.com/codespell-project/codespell
diff --git a/cathedral_rl/game/board.py b/cathedral_rl/game/board.py
index 5e76014..4586a54 100644
--- a/cathedral_rl/game/board.py
+++ b/cathedral_rl/game/board.py
@@ -133,7 +133,7 @@ def check_territory(self, agent):
             placed_pieces.append((self.pieces[agent][14], agent, 14))
 
         # Look through opponent pieces (and the cathedral) and try removing them
-        for (piece, piece_agent, piece_idx) in placed_pieces:
+        for piece, piece_agent, piece_idx in placed_pieces:
             self.squares = squares_real.copy()  # Reset self.squares to original state
             for coord in piece.points:
                 self.squares.reshape(10, 10)[coord[0], coord[1]] = 0
diff --git a/cathedral_rl/game/cathedral.py b/cathedral_rl/game/cathedral.py
index 64217c3..4fd2eb5 100644
--- a/cathedral_rl/game/cathedral.py
+++ b/cathedral_rl/game/cathedral.py
@@ -104,7 +104,6 @@ def __init__(
         per_move_rewards: Optional[bool] = False,
         final_reward_score_difference: Optional[bool] = False,
     ):
-
         super().__init__()
         self.screen = None
         self.render_mode = render_mode
@@ -316,7 +315,6 @@ def step(self, action):
             self.truncations[self.agent_selection]
             or self.terminations[self.agent_selection]
         ):
-
             return self._was_dead_step(action)
 
         # Check that it is a valid move
diff --git a/cathedral_rl/game/manual_policy.py b/cathedral_rl/game/manual_policy.py
index 0607b26..81d7d98 100644
--- a/cathedral_rl/game/manual_policy.py
+++ b/cathedral_rl/game/manual_policy.py
@@ -8,7 +8,6 @@
 
 class ManualPolicy:
     def __init__(self, env, agent_id: int = 0, recorder: GIFRecorder = None):
-
         self.env = env
         self.agent_id = agent_id
         self.agent = self.env.agents[self.agent_id]