diff --git a/config/config_test.go b/config/config_test.go
index b02776867bb..35832a00e64 100644
--- a/config/config_test.go
+++ b/config/config_test.go
@@ -17,7 +17,6 @@ package config
 import (
 	"os"
 	"path"
-	"path/filepath"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -560,19 +559,10 @@ func TestLoadEmptyConfig(t *testing.T) {
 }
 
 func loadConfigFile(t *testing.T, fileName string, factories component.Factories) (*configmodels.Config, error) {
-	// Open the file for reading.
-	file, err := os.Open(filepath.Clean(fileName))
-	require.NoErrorf(t, err, "unable to open the file %v", fileName)
-	require.NotNil(t, file)
-
-	defer func() {
-		require.NoErrorf(t, file.Close(), "unable to close the file %v", fileName)
-	}()
-
 	// Read yaml config from file
 	v := NewViper()
-	v.SetConfigType("yaml")
-	require.NoErrorf(t, v.ReadConfig(file), "unable to read the file %v", fileName)
+	v.SetConfigFile(fileName)
+	require.NoErrorf(t, v.ReadInConfig(), "unable to read the file %v", fileName)
 
 	// Load the config from viper using the given factories.
 	cfg, err := Load(v, factories)
diff --git a/config/configtest/configtest.go b/config/configtest/configtest.go
index cd1d190b566..3d75e3e5d35 100644
--- a/config/configtest/configtest.go
+++ b/config/configtest/configtest.go
@@ -15,8 +15,6 @@
 package configtest
 
 import (
-	"os"
-	"path/filepath"
 	"testing"
 
 	"github.com/spf13/viper"
@@ -32,19 +30,10 @@ import (
 // and can then be used to unmarshal the file contents to objects.
 // Example usage for testing can be found in configtest_test.go
 func NewViperFromYamlFile(t *testing.T, fileName string) *viper.Viper {
-	// Open the file for reading.
-	file, err := os.Open(filepath.Clean(fileName))
-	require.NoErrorf(t, err, "unable to open the file %v", fileName)
-	require.NotNil(t, file)
-
-	defer func() {
-		require.NoErrorf(t, file.Close(), "unable to close the file %v", fileName)
-	}()
-
 	// Read yaml config from file
 	v := config.NewViper()
-	v.SetConfigType("yaml")
-	require.NoErrorf(t, v.ReadConfig(file), "unable to read the file %v", fileName)
+	v.SetConfigFile(fileName)
+	require.NoErrorf(t, v.ReadInConfig(), "unable to read the file %v", fileName)
 
 	return v
 }