diff --git a/config/protocol.mainnet.neofs.yml b/config/protocol.mainnet.neofs.yml
index 5d5ba25e5..8cacfb0b5 100644
--- a/config/protocol.mainnet.neofs.yml
+++ b/config/protocol.mainnet.neofs.yml
@@ -26,6 +26,7 @@ ProtocolConfiguration:
   Hardforks:
     Aspidochelone: 3000000
     Basilisk: 4500000
+    Cockatrice: 5800000
 
 ApplicationConfiguration:
   SkipBlockVerification: false
diff --git a/config/protocol.mainnet.yml b/config/protocol.mainnet.yml
index 87320c269..91da6ea96 100644
--- a/config/protocol.mainnet.yml
+++ b/config/protocol.mainnet.yml
@@ -38,6 +38,7 @@ ProtocolConfiguration:
   Hardforks:
     Aspidochelone: 1730000
     Basilisk: 4120000
+    Cockatrice: 5450000
 
 ApplicationConfiguration:
   SkipBlockVerification: false
diff --git a/config/protocol.testnet.yml b/config/protocol.testnet.yml
index 09d08d779..5143828ab 100644
--- a/config/protocol.testnet.yml
+++ b/config/protocol.testnet.yml
@@ -41,6 +41,7 @@ ProtocolConfiguration:
   Hardforks:
     Aspidochelone: 210000
     Basilisk: 2680000
+    Cockatrice: 3967000
 
 ApplicationConfiguration:
   SkipBlockVerification: false