diff --git a/pkg/golinters/gocritic/gocritic_test.go b/pkg/golinters/gocritic/gocritic_test.go
index ae6f3b01e9b9..57c132513aba 100644
--- a/pkg/golinters/gocritic/gocritic_test.go
+++ b/pkg/golinters/gocritic/gocritic_test.go
@@ -40,7 +40,7 @@ func Test_settingsWrapper_InferEnabledChecks(t *testing.T) {
 	t.Logf("enabled by default checks:\n%s", strings.Join(enabledByDefaultChecks, "\n"))
 
 	insert := func(in []string, toInsert ...string) []string {
-		return append(slices.Clone(in), toInsert...)
+		return slices.Concat(in, toInsert)
 	}
 
 	remove := func(in []string, toRemove ...string) []string {
diff --git a/pkg/lint/lintersdb/validator_test.go b/pkg/lint/lintersdb/validator_test.go
index 25e77e4490b0..167cdeeb5070 100644
--- a/pkg/lint/lintersdb/validator_test.go
+++ b/pkg/lint/lintersdb/validator_test.go
@@ -1,6 +1,7 @@
 package lintersdb
 
 import (
+	"slices"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -113,9 +114,7 @@ func TestValidator_Validate(t *testing.T) {
 
 	v := NewValidator(m)
 
-	var testCases []validatorTestCase
-	testCases = append(testCases, validateLintersNamesTestCases...)
-	testCases = append(testCases, validatePresetsTestCases...)
+	testCases := slices.Concat(validateLintersNamesTestCases, validatePresetsTestCases)
 
 	for _, test := range testCases {
 		t.Run(test.desc, func(t *testing.T) {
@@ -133,9 +132,7 @@ func TestValidator_Validate_error(t *testing.T) {
 
 	v := NewValidator(m)
 
-	var testCases []validateErrorTestCase
-	testCases = append(testCases, validateLintersNamesErrorTestCases...)
-	testCases = append(testCases, validatePresetsErrorTestCases...)
+	testCases := slices.Concat(validateLintersNamesErrorTestCases, validatePresetsErrorTestCases)
 
 	for _, test := range testCases {
 		t.Run(test.desc, func(t *testing.T) {