diff --git a/CHANGELOG.md b/CHANGELOG.md
index 93f9f9358..6ada6cea6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,7 @@
 * [\#1221](https://github.com/cosmos/relayer/pull/1221) Update cometbft to v0.37.2 and ibc-go to v7.2.0.
 * [\#1226](https://github.com/cosmos/relayer/pull/1226) Avoid invalid Bech32 prefix error in parallel tests when sdk Config get overwritten by each other in single process.
 * [\#1231](https://github.com/cosmos/relayer/pull/1231) Reduce get bech32 prefix when get signer.
+* [\#1303](https://github.com/cosmos/relayer/pull/1303) Add missing max gas amount on txf to avoid estimate less gas when simualte runTx.
 
 ## v0.9.3
 
diff --git a/relayer/chains/cosmos/tx.go b/relayer/chains/cosmos/tx.go
index 44e002889..a8574b5f1 100644
--- a/relayer/chains/cosmos/tx.go
+++ b/relayer/chains/cosmos/tx.go
@@ -1668,6 +1668,9 @@ func (cc *CosmosProvider) PrepareFactory(txf tx.Factory, signingKey string) (tx.
 		txf = txf.WithGas(cc.PCfg.MinGasAmount)
 	}
 
+	if cc.PCfg.MaxGasAmount != 0 {
+		txf = txf.WithGas(cc.PCfg.MaxGasAmount)
+	}
 	txf, err = cc.SetWithExtensionOptions(txf)
 	if err != nil {
 		return tx.Factory{}, err