diff --git a/README.md b/README.md
index 821c03e8e..ed662b633 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,8 @@ If clone works successfully, you should see folder structure like Elastos.ELA/Ma
 Build the node.
 ```bash
 $ cd Elastos.ELA
+$ go get .
+$ go mod tidy
 $ make
 ```
 
diff --git a/go.mod b/go.mod
index 7b21db402..0d346cd83 100644
--- a/go.mod
+++ b/go.mod
@@ -4,33 +4,20 @@ go 1.16
 
 require (
 	github.com/btcsuite/btcd v0.22.0-beta
-	github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d
-	github.com/davecgh/go-spew v1.1.1
 	github.com/fatih/color v1.13.0 // indirect
-	github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db
 	github.com/gorilla/websocket v1.4.2
 	github.com/howeyc/gopass v0.0.0-20190910152052-7cb4b85ec19c
 	github.com/itchyny/base58-go v0.1.0
 	github.com/mattn/go-colorable v0.1.12 // indirect
-	github.com/mattn/go-runewidth v0.0.13
-	github.com/pmezard/go-difflib v1.0.0
-	github.com/rivo/uniseg v0.2.0
+	github.com/mattn/go-runewidth v0.0.13 // indirect
 	github.com/rs/cors v1.8.0
-	github.com/russross/blackfriday/v2 v2.0.1
-	github.com/shurcooL/sanitized_anchor_name v1.0.0
 	github.com/stretchr/testify v1.4.0
 	github.com/syndtr/goleveldb v1.0.0
 	github.com/tidwall/gjson v1.8.1
-	github.com/tidwall/match v1.0.3
-	github.com/tidwall/pretty v1.1.0
 	github.com/urfave/cli v1.22.5
-	github.com/yuin/goldmark v1.4.8 // indirect
 	github.com/yuin/gopher-lua v0.0.0-20210529063254-f4c35e4016d9
 	golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97
 	golang.org/x/net v0.0.0-20220225172249-27dd8689420f // indirect
-	golang.org/x/sys v0.0.0-20220307203707-22a9840ba4d7
-	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
-	golang.org/x/tools v0.1.9 // indirect
+	golang.org/x/sys v0.0.0-20220307203707-22a9840ba4d7 // indirect
 	gopkg.in/cheggaaa/pb.v1 v1.0.28
-	gopkg.in/yaml.v2 v2.2.2
 )