diff --git a/slapos/resiliencytest/suites/erp5.py b/slapos/resiliencytest/suites/erp5.py
index 99b8181cc078b7eac02401fffde290c56dc1059f..2e16634da8cf5973ace6c8a00d235f9487031e37 100644
--- a/slapos/resiliencytest/suites/erp5.py
+++ b/slapos/resiliencytest/suites/erp5.py
@@ -197,10 +197,8 @@ class ERP5TestSuite(SlaprunnerTestSuite):
     self._setERP5InstanceParameter()
 
     self._buildSoftwareRelease()
-    self._deployInstance()
-    self._deployInstance()
-    self._deployInstance()
-    self._deployInstance()
+    for _ in range(8):
+      self._deployInstance()
 
     self._editHAProxyconfiguration()