diff --git a/pkg/smartcontract/manifest/manifest.go b/pkg/smartcontract/manifest/manifest.go
index f2b76e9d7..027c6cd5c 100644
--- a/pkg/smartcontract/manifest/manifest.go
+++ b/pkg/smartcontract/manifest/manifest.go
@@ -10,7 +10,7 @@ import (
 
 const (
 	// MaxManifestSize is a max length for a valid contract manifest.
-	MaxManifestSize = 2048
+	MaxManifestSize = 4096
 
 	// MethodInit is a name for default initialization method.
 	MethodInit = "_initialize"