diff --git a/x/crosschain/types/keys.go b/x/crosschain/types/keys.go
index 3d75d3853c..4e2f8f5ab4 100644
--- a/x/crosschain/types/keys.go
+++ b/x/crosschain/types/keys.go
@@ -23,7 +23,7 @@ const (
 	// we keep the current value for backward compatibility
 	MemStoreKey = "mem_metacore"
 
-	ProtocolFee = 2000000000000000000
+	ProtocolFee = 500000000000000000
 
 	// CCTXIndexLength is the length of a crosschain transaction index
 	CCTXIndexLength          = 66