diff --git a/Gopkg.toml b/Gopkg.toml
index a0e9380..ee3699f 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -28,10 +28,6 @@
   name = "github.com/fsnotify/fsnotify"
   version = "1.4.2"
 
-[[constraint]]
-  name = "github.com/go-siris/siris"
-  version = "7.4.0"
-
 [[constraint]]
   name = "github.com/labstack/echo"
   version = "3.2.5"
diff --git a/realize/cli.go b/realize/cli.go
index 81ed142..25d6ee5 100644
--- a/realize/cli.go
+++ b/realize/cli.go
@@ -3,7 +3,7 @@ package realize
 import (
 	"fmt"
 	"github.com/fsnotify/fsnotify"
-	"github.com/go-siris/siris/core/errors"
+	"errors"
 	"go/build"
 	"log"
 	"os"
@@ -18,7 +18,7 @@ var (
 	// RPrefix tool name
 	RPrefix = "realize"
 	// RVersion current version
-	RVersion = "2.1"
+	RVersion = "2.0.2"
 	// RExt file extension
 	RExt = ".yaml"
 	// RFile config file name
diff --git a/realize/server.go b/realize/server.go
index 250f118..cbc3e5f 100644
--- a/realize/server.go
+++ b/realize/server.go
@@ -14,7 +14,7 @@ import (
 	"os/exec"
 	"runtime"
 	"strconv"
-	"github.com/go-siris/siris/core/errors"
+	"errors"
 )
 
 // Dafault host and port