diff --git a/erp5/util/testnode/ScalabilityTestRunner.py b/erp5/util/testnode/ScalabilityTestRunner.py
index 5f2379221d5b78eacf92ca3a92e8f0cd02790d95..536cbdafe51ad233823039af2fef8c5474104cad 100644
--- a/erp5/util/testnode/ScalabilityTestRunner.py
+++ b/erp5/util/testnode/ScalabilityTestRunner.py
@@ -50,8 +50,8 @@ import signal
 MAX_INSTANCE_TIME = 60*60*2
 # max time to register instance to slapOSMaster: 5 minutes
 MAX_CREATION_INSTANCE_TIME = 60*10
-# max time for a test: 1 hour
-MAX_TEST_CASE_TIME = 60*60
+# max time for a test: 6 hour
+MAX_TEST_CASE_TIME = 6*60*60
 
 class ScalabilityTestRunner():
   def __init__(self, testnode):