diff --git a/backend_client.go b/backend_client.go
index 882bc95..ce7ebd6 100644
--- a/backend_client.go
+++ b/backend_client.go
@@ -36,7 +36,6 @@ import (
 	"sync"
 
 	"github.com/dlintw/goconf"
-	"golang.org/x/net/context/ctxhttp"
 )
 
 var (
@@ -248,8 +247,14 @@ func performRequestWithRedirects(ctx context.Context, client *http.Client, req *
 			req.Body = ioutil.NopCloser(bytes.NewReader(body))
 			req.ContentLength = int64(len(body))
 		}
-		resp, err = ctxhttp.Do(ctx, client, req)
+		resp, err = client.Do(req.WithContext(ctx))
 		if err != nil {
+			// Prefer context error if it has been cancelled.
+			select {
+			case <-ctx.Done():
+				err = ctx.Err()
+			default:
+			}
 			if e, ok := err.(*url.Error); !ok || resp == nil || e.Err != ErrUseLastResponse {
 				return nil, err
 			}
diff --git a/go.mod b/go.mod
index 4e1f03e..cdbed37 100644
--- a/go.mod
+++ b/go.mod
@@ -16,6 +16,5 @@ require (
 	github.com/notedit/janus-go v0.0.0-20200517101215-10eb8b95d1a0
 	github.com/oschwald/maxminddb-golang v1.3.1-0.20190523235738-1960b16a5147
 	go.etcd.io/etcd v0.5.0-alpha.5.0.20200824191128-ae9734ed278b
-	golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7
 	gopkg.in/dgrijalva/jwt-go.v3 v3.2.0
 )
diff --git a/virtualsession_test.go b/virtualsession_test.go
index 11041b8..82de2de 100644
--- a/virtualsession_test.go
+++ b/virtualsession_test.go
@@ -22,10 +22,9 @@
 package signaling
 
 import (
+	"context"
 	"encoding/json"
 	"testing"
-
-	"golang.org/x/net/context"
 )
 
 func TestVirtualSession(t *testing.T) {