diff --git a/testutils/connectionmanager/connectionmanager.go b/testutils/connectionmanager/connectionmanager.go
index ccf1e90d..d7f01ad9 100644
--- a/testutils/connectionmanager/connectionmanager.go
+++ b/testutils/connectionmanager/connectionmanager.go
@@ -7,19 +7,21 @@ package connectionmanager
 
 import (
 	"context"
+	"net"
 	"testing"
 
+	"github.com/insolar/insolar/ledger/heavy/exporter"
+	"github.com/insolar/spec-insolar-block-explorer-api/v1/server"
+	"github.com/jinzhu/gorm"
+	"github.com/labstack/echo/v4"
+	"github.com/stretchr/testify/require"
+
 	"github.com/insolar/block-explorer/api"
 	"github.com/insolar/block-explorer/configuration"
 	"github.com/insolar/block-explorer/etl/connection"
 	"github.com/insolar/block-explorer/etl/storage"
 	"github.com/insolar/block-explorer/test/heavymock"
 	"github.com/insolar/block-explorer/testutils"
-	"github.com/insolar/insolar/ledger/heavy/exporter"
-	"github.com/insolar/spec-insolar-block-explorer-api/v1/server"
-	"github.com/jinzhu/gorm"
-	"github.com/labstack/echo/v4"
-	"github.com/stretchr/testify/require"
 )
 
 const DefaultAPIPort = ":8081"
@@ -81,6 +83,9 @@ func (c *ConnectionManager) StartAPIServer(t testing.TB) {
 	apiServer := api.NewServer(c.ctx, s, cfg)
 	server.RegisterHandlers(e, apiServer)
 
+	l, err := net.Listen("tcp", cfg.Listen)
+	require.NoError(t, err, "can't start listen")
+	c.echo.Listener = l
 	go func() {
 		err := c.echo.Start(cfg.Listen)
 		if err != nil {