diff --git a/integration/constants.go b/integration/constants.go
index 6191b4f932..37449c6dc5 100644
--- a/integration/constants.go
+++ b/integration/constants.go
@@ -8,7 +8,8 @@ const (
 	StartPortSimulationInMem         = 22000
 	StartPortSimulationFullNetwork   = 26000
 	StartPortSmartContractTests      = 30000
-	StartPortContractDeployerTest    = 34000
+	StartPortContractDeployerTest1   = 34000
+	StartPortContractDeployerTest2   = 35000
 	StartPortWalletExtensionUnitTest = 38000
 	StartPortFaucetUnitTest          = 42000
 	StartPortFaucetHTTPUnitTest      = 48000
diff --git a/integration/contractdeployer/contract_deployer_test.go b/integration/contractdeployer/contract_deployer_test.go
index 7fd64f6fa7..5907f99595 100644
--- a/integration/contractdeployer/contract_deployer_test.go
+++ b/integration/contractdeployer/contract_deployer_test.go
@@ -45,7 +45,7 @@ func init() { //nolint:gochecknoinits
 }
 
 func TestCanDeployLayer2ERC20Contract(t *testing.T) {
-	startPort := integration.StartPortContractDeployerTest
+	startPort := integration.StartPortContractDeployerTest1
 	hostWSPort := startPort + integration.DefaultHostRPCWSOffset
 	createObscuroNetwork(t, startPort)
 	// This sleep is required to ensure the initial rollup exists, and thus contract deployer can check its balance.
@@ -81,7 +81,7 @@ func TestCanDeployLayer2ERC20Contract(t *testing.T) {
 }
 
 func TestFaucetSendsFundsOnlyIfNeeded(t *testing.T) {
-	startPort := integration.StartPortContractDeployerTest
+	startPort := integration.StartPortContractDeployerTest2
 	hostWSPort := startPort + integration.DefaultHostRPCWSOffset
 	createObscuroNetwork(t, startPort)
 
diff --git a/integration/eth2network/eth2_network.go b/integration/eth2network/eth2_network.go
index 4713b72cf3..88202901aa 100644
--- a/integration/eth2network/eth2_network.go
+++ b/integration/eth2network/eth2_network.go
@@ -334,6 +334,8 @@ func (n *Impl) Stop() error {
 			fmt.Printf("unable to kill prysm validator node - %s\n", err.Error())
 		}
 	}
+	// wait a second for the kill signal
+	time.Sleep(time.Second)
 	return nil
 }