diff --git a/tools/run_p23_life_observation.py b/tools/run_p23_life_observation.py
index 6592539..4eff71f 100644
--- a/tools/run_p23_life_observation.py
+++ b/tools/run_p23_life_observation.py
@@ -20,7 +20,7 @@ CONDITIONS = ('room_occupancy_and_operation', 'queues_and_overflow',
               'elevator_state_and_passengers', 'staff_state_and_jobs',
               'supplies_and_carried_goods', 'same_demand_route_improvement',
               'normal_os_and_distinct_pid_resume')
-OS_CHILD_TIMEOUT_SECONDS = 900
+OS_CHILD_TIMEOUT_SECONDS = 3600
 RECORDER = 'tests/fixtures/p23-03/passive_os_recorder.gd'
 
 def collect_screenshots(out, pair, role):