diff --git a/flower_game_env.py b/flower_game_env.py
index fd77bdc..4c80aea 100644
--- a/flower_game_env.py
+++ b/flower_game_env.py
@@ -185,7 +185,7 @@ class FlowerGameEnv(gym.Env):
         # Reward-/Heuristik-Parameter (dimensionslos)
         self.shaping_gain = 1.0
         self.eat_reward = 1.0
-        self.collision_penalty = 5.0
+        self.collision_penalty = 15.0
 
         # Event-Cooldown
         self.contact_cooldown_frames = 8