diff --git a/internal/gojunitreport/go-junit-report_test.go b/internal/gojunitreport/go-junit-report_test.go
index 97db5171..a44d67f4 100644
--- a/internal/gojunitreport/go-junit-report_test.go
+++ b/internal/gojunitreport/go-junit-report_test.go
@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"flag"
 	"fmt"
+	"io/ioutil"
 	"os"
 	"path/filepath"
 	"regexp"
@@ -57,7 +58,7 @@ func testRun(inputFile, reportFile string, config Config, t *testing.T) {
 	}
 	defer input.Close()
 
-	wantReport, err := os.ReadFile(reportFile)
+	wantReport, err := ioutil.ReadFile(reportFile)
 	if os.IsNotExist(err) {
 		t.Skipf("Skipping test with missing report file: %s", reportFile)
 	} else if err != nil {
diff --git a/parser/gotest/json_test.go b/parser/gotest/json_test.go
index abe1af8c..85b41773 100644
--- a/parser/gotest/json_test.go
+++ b/parser/gotest/json_test.go
@@ -2,6 +2,7 @@ package gotest
 
 import (
 	"io"
+	"io/ioutil"
 	"strings"
 	"testing"
 
@@ -15,7 +16,7 @@ var input = `some other output
 
 func TestJSONReaderReadAll(t *testing.T) {
 	r := newJSONReader(strings.NewReader(input))
-	got, err := io.ReadAll(r)
+	got, err := ioutil.ReadAll(r)
 	if err != nil {
 		t.Fatal(err)
 	}