diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 2c3a69783..9a2ebaa6b 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -92,8 +92,8 @@ jobs:
 
     - name: Set up Env
       run: |
-        # echo "::set-env name=GOPATH::$(go env GOPATH)"
-        # echo "::add-path::$(go env GOPATH)/bin"
+        echo "::set-env name=GOPATH::$(go env GOPATH)"
+        echo "::add-path::$(go env GOPATH)/bin"
   
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
diff --git a/go.mod b/go.mod
index d8c80fc05..8e2f518a7 100644
--- a/go.mod
+++ b/go.mod
@@ -32,6 +32,7 @@ require (
 	github.com/leodido/go-urn v1.1.0 // indirect
 	github.com/mattn/go-colorable v0.1.4 // indirect
 	github.com/mattn/go-isatty v0.0.10 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/montanaflynn/stats v0.5.0
 	github.com/openzipkin/zipkin-go v0.2.1
 	github.com/otokaze/mock v0.0.0-20190125081256-8282b7a7c7c3
diff --git a/go.sum b/go.sum
index d351be9ad..9de294c66 100644
--- a/go.sum
+++ b/go.sum
@@ -465,8 +465,6 @@ google.golang.org/grpc v1.24.0/go.mod h1:XDChyiUovWa60DnaeDeZmSW86xtLtjtZbwvSiRn
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.28.0 h1:bO/TA4OxCOummhSf10siHuG7vJOiwh7SpRpFZDkOgl4=
-google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKal+60=
 google.golang.org/grpc v1.28.1 h1:C1QC6KzgSiLyBabDi87BbjaGreoRgGUF5nOyvfrAZ1k=
 google.golang.org/grpc v1.28.1/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKal+60=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=