diff --git a/x/evm/keeper/keeper_test.go b/x/evm/keeper/keeper_test.go
index ed208e49..4973863a 100644
--- a/x/evm/keeper/keeper_test.go
+++ b/x/evm/keeper/keeper_test.go
@@ -72,9 +72,12 @@ type KeeperTestSuite struct {
 func (suite *KeeperTestSuite) DoSetupTest(t require.TestingT) {
 	checkTx := false
 
-	// account key
-	priv, err := ethsecp256k1.GenerateKey()
+	// account key, use a constant account to keep unit test deterministic.
+	ecdsaPriv, err := crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
 	require.NoError(t, err)
+	priv := &ethsecp256k1.PrivKey{
+		Key: crypto.FromECDSA(ecdsaPriv),
+	}
 	suite.address = common.BytesToAddress(priv.PubKey().Address().Bytes())
 	suite.signer = tests.NewSigner(priv)