diff --git a/config/protocol.mainnet.yml b/config/protocol.mainnet.yml
index 7ab8bb040..45d1f8056 100644
--- a/config/protocol.mainnet.yml
+++ b/config/protocol.mainnet.yml
@@ -4,6 +4,7 @@ ProtocolConfiguration:
   SecondsPerBlock: 15
   EnableStateRoot: true
   StateRootEnableIndex: 6016000
+  KeepOnlyLatestState: false
   LowPriorityThreshold: 0.001
   MemPoolSize: 50000
   StandbyValidators:
diff --git a/config/protocol.testnet.yml b/config/protocol.testnet.yml
index 7c5bd4fa6..75311c918 100644
--- a/config/protocol.testnet.yml
+++ b/config/protocol.testnet.yml
@@ -4,6 +4,7 @@ ProtocolConfiguration:
   SecondsPerBlock: 15
   EnableStateRoot: true
   StateRootEnableIndex: 4380100
+  KeepOnlyLatestState: false
   LowPriorityThreshold: 0.000
   MemPoolSize: 50000
   StandbyValidators:
diff --git a/config/protocol.unit_testnet.yml b/config/protocol.unit_testnet.yml
index b9ca4a761..c6a9b17be 100644
--- a/config/protocol.unit_testnet.yml
+++ b/config/protocol.unit_testnet.yml
@@ -3,6 +3,7 @@ ProtocolConfiguration:
   AddressVersion: 23
   SecondsPerBlock: 15
   EnableStateRoot: true
+  KeepOnlyLatestState: false
   LowPriorityThreshold: 0.000
   MemPoolSize: 50000
   StandbyValidators: