diff --git a/params/protocol_params.go b/params/protocol_params.go
index aa77ac6a65d0..71a1fc2b1355 100644
--- a/params/protocol_params.go
+++ b/params/protocol_params.go
@@ -105,7 +105,7 @@ const (
 	// Introduced in Tangerine Whistle (Eip 150)
 	CreateBySelfdestructGas uint64 = 25000
 
-	MaxCodeSize = 100000 // Maximum bytecode to permit for a contract
+	MaxCodeSize = 180000 // Maximum bytecode to permit for a contract
 
 	// Precompiled contract gas prices