diff --git a/cre/capabilities/blockchain/evm/v1alpha/client.proto b/cre/capabilities/blockchain/evm/v1alpha/client.proto
index 351717ed..5e47ebe0 100644
--- a/cre/capabilities/blockchain/evm/v1alpha/client.proto
+++ b/cre/capabilities/blockchain/evm/v1alpha/client.proto
@@ -302,6 +302,9 @@ message WriteReportRequest {
 
 message GasConfig {
   uint64 gas_limit = 1;
+  // Maximum gas price (in wei) the user is willing to pay for this transaction.
+  // If not specified, the value configured in GasEstimator will be used.
+  optional values.v1.BigInt max_gas_price = 2;
 }
 
 enum TxStatus {
diff --git a/cre/go/installer/pkg/embedded_gen.go b/cre/go/installer/pkg/embedded_gen.go
index 09c71b1e..02439a19 100755
--- a/cre/go/installer/pkg/embedded_gen.go
+++ b/cre/go/installer/pkg/embedded_gen.go
@@ -305,6 +305,9 @@ message WriteReportRequest {
 
 message GasConfig {
   uint64 gas_limit = 1;
+  // Maximum gas price (in wei) the user is willing to pay for this transaction.
+  // If not specified, the value configured in GasEstimator will be used.
+  optional values.v1.BigInt max_gas_price = 2;
 }
 
 enum TxStatus {