diff --git a/single_test_optimization.py b/single_test_optimization.py
index b758cf0..d2ea9dc 100644
--- a/single_test_optimization.py
+++ b/single_test_optimization.py
@@ -362,7 +362,7 @@ parameter = {
 
 # Initialize the optimization problem
 opt_class = optimization_problem(
-    prediction_hours=48, strafe=10, optimization_hours=24, verbose=True
+    prediction_hours=48, strafe=10, optimization_hours=24, verbose=True, fixed_seed=42
 )
 
 # Perform the optimisation based on the provided parameters and start hour