diff --git a/tools/harness-automation/cases/ed_6_5_3.py b/tools/harness-automation/cases/ed_6_5_3.py
index 14d3fb730..f6c51fbe4 100644
--- a/tools/harness-automation/cases/ed_6_5_3.py
+++ b/tools/harness-automation/cases/ed_6_5_3.py
@@ -36,7 +36,7 @@ from autothreadharness.harness_case import HarnessCase
 class ED_6_5_3(HarnessCase):
     role = HarnessCase.ROLE_ED
     case = '6 5 3'
-    golden_devices_required = 2
+    golden_devices_required = 1
     def on_dialog(self, dialog, title):
         if title.startswith('Reset DUT'):
             self.dut.stop()
diff --git a/tools/harness-automation/cases/leader_5_3_6.py b/tools/harness-automation/cases/leader_5_3_6.py
index 2beb3a6f0..bc098a938 100644
--- a/tools/harness-automation/cases/leader_5_3_6.py
+++ b/tools/harness-automation/cases/leader_5_3_6.py
@@ -34,7 +34,7 @@ import unittest
 class Leader_5_3_6(HarnessCase):
     role = HarnessCase.ROLE_LEADER
     case = '5 3 6'
-    golden_devices_required = 5
+    golden_devices_required = 2
     def on_dialog(self, dialog, title):
         pass
 
diff --git a/tools/harness-automation/cases/leader_5_3_8.py b/tools/harness-automation/cases/leader_5_3_8.py
index cfa0fcdf7..e668b07a8 100644
--- a/tools/harness-automation/cases/leader_5_3_8.py
+++ b/tools/harness-automation/cases/leader_5_3_8.py
@@ -35,7 +35,7 @@ from autothreadharness.harness_case import HarnessCase
 class Leader_5_3_8(HarnessCase):
     role = HarnessCase.ROLE_LEADER
     case = '5 3 8'
-    golden_devices_required = 4
+    golden_devices_required = 3
     def on_dialog(self, dialog, title):
         pass
 
diff --git a/tools/harness-automation/cases/leader_9_2_12.py b/tools/harness-automation/cases/leader_9_2_12.py
index d26581cae..8adc441ac 100644
--- a/tools/harness-automation/cases/leader_9_2_12.py
+++ b/tools/harness-automation/cases/leader_9_2_12.py
@@ -35,7 +35,7 @@ from autothreadharness.harness_case import HarnessCase
 class Leader_9_2_12(HarnessCase):
     role = HarnessCase.ROLE_LEADER
     case = '9 2 12'
-    golden_devices_required = 5
+    golden_devices_required = 3
     def on_dialog(self, dialog, title):
         pass
 
diff --git a/tools/harness-automation/cases/med_9_2_12.py b/tools/harness-automation/cases/med_9_2_12.py
index 85c10cac8..13cd24cc1 100644
--- a/tools/harness-automation/cases/med_9_2_12.py
+++ b/tools/harness-automation/cases/med_9_2_12.py
@@ -35,7 +35,7 @@ from autothreadharness.harness_case import HarnessCase
 class MED_9_2_12(HarnessCase):
     role = HarnessCase.ROLE_MED
     case = '9 2 12'
-    golden_devices_required = 5
+    golden_devices_required = 3
     def on_dialog(self, dialog, title):
         pass
 
diff --git a/tools/harness-automation/cases/reed_5_2_4.py b/tools/harness-automation/cases/reed_5_2_4.py
index fd63589c7..86471752e 100644
--- a/tools/harness-automation/cases/reed_5_2_4.py
+++ b/tools/harness-automation/cases/reed_5_2_4.py
@@ -35,7 +35,7 @@ from autothreadharness.harness_case import HarnessCase
 class REED_5_2_4(HarnessCase):
     role = HarnessCase.ROLE_REED
     case = '5 2 4'
-    golden_devices_required = 18
+    golden_devices_required = 17
     def on_dialog(self, dialog, title):
         pass
 
diff --git a/tools/harness-automation/cases/router_7_1_8.py b/tools/harness-automation/cases/router_7_1_8.py
index 16796442a..db1f288d2 100644
--- a/tools/harness-automation/cases/router_7_1_8.py
+++ b/tools/harness-automation/cases/router_7_1_8.py
@@ -35,7 +35,7 @@ from autothreadharness.harness_case import HarnessCase
 class Router_7_1_8(HarnessCase):
     role = HarnessCase.ROLE_ROUTER
     case = '7 1 8'
-    golden_devices_required = 3
+    golden_devices_required = 2
     def on_dialog(self, dialog, title):
         pass
 
diff --git a/tools/harness-automation/cases/router_9_2_12.py b/tools/harness-automation/cases/router_9_2_12.py
index bfa7c8d97..b5f0f3d2e 100644
--- a/tools/harness-automation/cases/router_9_2_12.py
+++ b/tools/harness-automation/cases/router_9_2_12.py
@@ -35,7 +35,7 @@ from autothreadharness.harness_case import HarnessCase
 class Router_9_2_12(HarnessCase):
     role = HarnessCase.ROLE_ROUTER
     case = '9 2 12'
-    golden_devices_required = 5
+    golden_devices_required = 3
     def on_dialog(self, dialog, title):
         pass
 
diff --git a/tools/harness-automation/cases/sed_6_5_3.py b/tools/harness-automation/cases/sed_6_5_3.py
index e8f720ce1..1f893f006 100644
--- a/tools/harness-automation/cases/sed_6_5_3.py
+++ b/tools/harness-automation/cases/sed_6_5_3.py
@@ -36,7 +36,7 @@ from autothreadharness.harness_case import HarnessCase
 class SED_6_5_3(HarnessCase):
     role = HarnessCase.ROLE_SED
     case = '6 5 3'
-    golden_devices_required = 2
+    golden_devices_required = 1
     def on_dialog(self, dialog, title):
         if title.startswith('Reset DUT'):
             self.dut.stop()