diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7603b46..9da8609 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ on:
 jobs:
   test-go:
     name: Run Go lint and unit tests
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     permissions:
       pull-requests: write
       # Required: allow read access to the content for analysis.
@@ -47,7 +47,7 @@ jobs:
           cd ./example/hasura
           docker-compose up -d
       - name: Lint
-        uses: golangci/golangci-lint-action@v4
+        uses: golangci/golangci-lint-action@v6
         with:
           version: latest
           only-new-issues: true
diff --git a/go.mod b/go.mod
index 6910049..03937b1 100644
--- a/go.mod
+++ b/go.mod
@@ -4,5 +4,5 @@ go 1.20
 
 require (
 	github.com/google/uuid v1.6.0
-	nhooyr.io/websocket v1.8.10
+	nhooyr.io/websocket v1.8.11
 )
diff --git a/go.sum b/go.sum
index b14acc6..50b33e2 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,4 @@
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-nhooyr.io/websocket v1.8.10 h1:mv4p+MnGrLDcPlBoWsvPP7XCzTYMXP9F9eIGoKbgx7Q=
-nhooyr.io/websocket v1.8.10/go.mod h1:rN9OFWIUwuxg4fR5tELlYC04bXYowCP9GX47ivo2l+c=
+nhooyr.io/websocket v1.8.11 h1:f/qXNc2/3DpoSZkHt1DQu6rj4zGC8JmkkLkWss0MgN0=
+nhooyr.io/websocket v1.8.11/go.mod h1:rN9OFWIUwuxg4fR5tELlYC04bXYowCP9GX47ivo2l+c=
diff --git a/graphql.go b/graphql.go
index 706092d..d72264f 100644
--- a/graphql.go
+++ b/graphql.go
@@ -178,8 +178,11 @@ func (c *Client) request(ctx context.Context, query string, variables map[string
 	}
 
 	if resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		err := newError(ErrRequestError, fmt.Errorf("%v; body: %q", resp.Status, body))
+		b, _ := io.ReadAll(resp.Body)
+		err := newError(ErrRequestError, NetworkError{
+			statusCode: resp.StatusCode,
+			body:       string(b),
+		})
 
 		if c.debug {
 			err = err.withRequest(request, reqReader)
@@ -386,6 +389,23 @@ func newError(code string, err error) Error {
 	}
 }
 
+type NetworkError struct {
+	body       string
+	statusCode int
+}
+
+func (e NetworkError) Error() string {
+	return fmt.Sprintf("%d %s", e.statusCode, http.StatusText(e.statusCode))
+}
+
+func (e NetworkError) Body() string {
+	return e.body
+}
+
+func (e NetworkError) StatusCode() int {
+	return e.statusCode
+}
+
 func (e Error) withRequest(req *http.Request, bodyReader io.Reader) Error {
 	internal := e.getInternalExtension()
 	bodyBytes, err := io.ReadAll(bodyReader)
diff --git a/graphql_test.go b/graphql_test.go
index 224e926..544ac7d 100644
--- a/graphql_test.go
+++ b/graphql_test.go
@@ -215,7 +215,7 @@ func TestClient_Query_errorStatusCode(t *testing.T) {
 	if err == nil {
 		t.Fatal("got error: nil, want: non-nil")
 	}
-	if got, want := err.Error(), `Message: 500 Internal Server Error; body: "important message\n", Locations: [], Extensions: map[code:request_error], Path: []`; got != want {
+	if got, want := err.Error(), `Message: 500 Internal Server Error, Locations: [], Extensions: map[code:request_error], Path: []`; got != want {
 		t.Errorf("got error: %v, want: %v", got, want)
 	}
 	if q.User.Name != "" {
@@ -240,7 +240,7 @@ func TestClient_Query_errorStatusCode(t *testing.T) {
 		t.Errorf("the error type should be graphql.Errors")
 	}
 	gqlErr = err.(graphql.Errors)
-	if got, want := gqlErr[0].Message, `500 Internal Server Error; body: "important message\n"`; got != want {
+	if got, want := gqlErr[0].Message, `500 Internal Server Error`; got != want {
 		t.Errorf("got error: %v, want: %v", got, want)
 	}
 	if got, want := gqlErr[0].Extensions["code"], graphql.ErrRequestError; got != want {