diff --git a/kis/flow.go b/kis/flow.go
index a4649b8..dfb2cf2 100644
--- a/kis/flow.go
+++ b/kis/flow.go
@@ -2,9 +2,10 @@ package kis
 
 import (
 	"context"
+	"time"
+
 	"github.com/aceld/kis-flow/common"
 	"github.com/aceld/kis-flow/config"
-	"time"
 )
 
 type Flow interface {
diff --git a/kis/function.go b/kis/function.go
index 5ebb057..e59dcf6 100644
--- a/kis/function.go
+++ b/kis/function.go
@@ -2,6 +2,7 @@ package kis
 
 import (
 	"context"
+
 	"github.com/aceld/kis-flow/config"
 )
 
diff --git a/kis/pool.go b/kis/pool.go
index 8951f2c..d0aba57 100644
--- a/kis/pool.go
+++ b/kis/pool.go
@@ -4,10 +4,11 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/aceld/kis-flow/common"
-	"github.com/aceld/kis-flow/log"
 	"reflect"
 	"sync"
+
+	"github.com/aceld/kis-flow/common"
+	"github.com/aceld/kis-flow/log"
 )
 
 var _poolOnce sync.Once
diff --git a/kis/router.go b/kis/router.go
index 2143c8e..a0833e7 100644
--- a/kis/router.go
+++ b/kis/router.go
@@ -2,6 +2,7 @@ package kis
 
 import (
 	"context"
+
 	"github.com/aceld/kis-flow/common"
 )
 
diff --git a/kis/serialize.go b/kis/serialize.go
index 8e4e30d..e2b65a6 100644
--- a/kis/serialize.go
+++ b/kis/serialize.go
@@ -1,9 +1,10 @@
 package kis
 
 import (
+	"reflect"
+
 	"github.com/aceld/kis-flow/common"
 	"github.com/aceld/kis-flow/serialize"
-	"reflect"
 )
 
 // Serialize Data serialization interface