diff --git a/cmd/shell-operator/main.go b/cmd/shell-operator/main.go
index 6ed296fb..16f8a727 100644
--- a/cmd/shell-operator/main.go
+++ b/cmd/shell-operator/main.go
@@ -2,9 +2,7 @@ package main
 
 import (
 	"fmt"
-	"math/rand"
 	"os"
-	"time"
 
 	"github.com/deckhouse/deckhouse/pkg/log"
 	"gopkg.in/alecthomas/kingpin.v2"
@@ -27,13 +25,13 @@ func main() {
 	kpApp.UsageTemplate(app.OperatorUsageTemplate(app.AppName))
 
 	// Initialize klog wrapper when all values are parsed
-	kpApp.Action(func(c *kingpin.ParseContext) error {
+	kpApp.Action(func(_ *kingpin.ParseContext) error {
 		klogtolog.InitAdapter(app.DebugKubernetesAPI, logger.Named("klog"))
 		return nil
 	})
 
 	// print version
-	kpApp.Command("version", "Show version.").Action(func(c *kingpin.ParseContext) error {
+	kpApp.Command("version", "Show version.").Action(func(_ *kingpin.ParseContext) error {
 		fmt.Printf("%s %s\n", app.AppName, app.Version)
 		fmt.Println(jq.FilterInfo())
 		return nil
@@ -42,12 +40,9 @@ func main() {
 	// start main loop
 	startCmd := kpApp.Command("start", "Start shell-operator.").
 		Default().
-		Action(func(c *kingpin.ParseContext) error {
+		Action(func(_ *kingpin.ParseContext) error {
 			app.AppStartMessage = fmt.Sprintf("%s %s", app.AppName, app.Version)
 
-			// Init rand generator.
-			rand.Seed(time.Now().UnixNano())
-
 			// Init logging and initialize a ShellOperator instance.
 			operator, err := shell_operator.Init(logger.Named("shell-operator"))
 			if err != nil {
diff --git a/pkg/app/app.go b/pkg/app/app.go
index 24318705..f0edf74d 100644
--- a/pkg/app/app.go
+++ b/pkg/app/app.go
@@ -148,7 +148,7 @@ Use "%s debug-options" for a list of debug options for start command.
 
 // CommandWithDefaultUsageTemplate is used to workaround an absence of per-command usage templates
 func CommandWithDefaultUsageTemplate(kpApp *kingpin.Application, name, help string) *kingpin.CmdClause {
-	return kpApp.Command(name, help).PreAction(func(context *kingpin.ParseContext) error {
+	return kpApp.Command(name, help).PreAction(func(_ *kingpin.ParseContext) error {
 		kpApp.UsageTemplate(kingpin.DefaultUsageTemplate)
 		return nil
 	})
diff --git a/pkg/app/log.go b/pkg/app/log.go
index 316303e1..88bfe80e 100644
--- a/pkg/app/log.go
+++ b/pkg/app/log.go
@@ -69,11 +69,11 @@ func SetupLogging(runtimeConfig *config.Config, logger *log.Logger) {
 	runtimeConfig.Register("log.level",
 		fmt.Sprintf("Global log level. Default duration for debug level is %s", ForcedDurationForDebugLevel),
 		strings.ToLower(LogLevel),
-		func(oldValue string, newValue string) error {
-			log.Infof("Set log level to '%s'", newValue)
+		func(_ string, newValue string) error {
+			logger.Infof("Set log level to '%s'", newValue)
 			log.SetDefaultLevel(log.LogLevelFromStr(newValue))
 			return nil
-		}, func(oldValue string, newValue string) time.Duration {
+		}, func(_ string, newValue string) time.Duration {
 			if strings.ToLower(newValue) == "debug" {
 				return ForcedDurationForDebugLevel
 			}
diff --git a/pkg/config/config_test.go b/pkg/config/config_test.go
index 2425a8bf..4261f44b 100644
--- a/pkg/config/config_test.go
+++ b/pkg/config/config_test.go
@@ -36,7 +36,7 @@ func TestConfig_OnChange(t *testing.T) {
 	c := NewConfig(log.NewNop())
 
 	newValue := ""
-	c.Register("log.level", "", "info", func(oldValue string, n string) error {
+	c.Register("log.level", "", "info", func(_ string, n string) error {
 		newValue = n
 		return nil
 	}, nil)
@@ -69,7 +69,7 @@ func TestConfig_Errors(t *testing.T) {
 	var err error
 	c := NewConfig(log.NewNop())
 
-	c.Register("log.level", "", "info", func(oldValue string, n string) error {
+	c.Register("log.level", "", "info", func(_ string, n string) error {
 		if n == "debug" {
 			return nil
 		}
diff --git a/pkg/debug/debug-cmd.go b/pkg/debug/debug-cmd.go
index 07f8ddd7..702a6d12 100644
--- a/pkg/debug/debug-cmd.go
+++ b/pkg/debug/debug-cmd.go
@@ -19,7 +19,7 @@ func DefineDebugCommands(kpApp *kingpin.Application) {
 	queueCmd := app.CommandWithDefaultUsageTemplate(kpApp, "queue", "Dump queues.")
 
 	queueListCmd := queueCmd.Command("list", "Dump tasks in all queues.").
-		Action(func(c *kingpin.ParseContext) error {
+		Action(func(_ *kingpin.ParseContext) error {
 			out, err := Queue(DefaultClient()).List(outputFormat, showEmpty)
 			if err != nil {
 				return err
@@ -34,7 +34,7 @@ func DefineDebugCommands(kpApp *kingpin.Application) {
 	app.DefineDebugUnixSocketFlag(queueListCmd)
 
 	queueMainCmd := queueCmd.Command("main", "Dump tasks in the main queue.").
-		Action(func(c *kingpin.ParseContext) error {
+		Action(func(_ *kingpin.ParseContext) error {
 			out, err := Queue(DefaultClient()).Main(outputFormat)
 			if err != nil {
 				return err
@@ -49,7 +49,7 @@ func DefineDebugCommands(kpApp *kingpin.Application) {
 	configCmd := app.CommandWithDefaultUsageTemplate(kpApp, "config", "Manage runtime parameters.")
 
 	configListCmd := configCmd.Command("list", "List available runtime parameters.").
-		Action(func(c *kingpin.ParseContext) error {
+		Action(func(_ *kingpin.ParseContext) error {
 			out, err := Config(DefaultClient()).List(outputFormat)
 			if err != nil {
 				return err
@@ -64,7 +64,7 @@ func DefineDebugCommands(kpApp *kingpin.Application) {
 	var paramValue string
 	var paramDuration time.Duration
 	configSetCmd := configCmd.Command("set", "Set runtime parameter.").
-		Action(func(c *kingpin.ParseContext) error {
+		Action(func(_ *kingpin.ParseContext) error {
 			out, err := Config(DefaultClient()).Set(paramName, paramValue, paramDuration)
 			if err != nil {
 				return err
@@ -80,7 +80,7 @@ func DefineDebugCommands(kpApp *kingpin.Application) {
 	// Raw request command
 	var rawUrl string
 	rawCommand := app.CommandWithDefaultUsageTemplate(kpApp, "raw", "Make a raw request to debug endpoint.").
-		Action(func(c *kingpin.ParseContext) error {
+		Action(func(_ *kingpin.ParseContext) error {
 			url := fmt.Sprintf("http://unix%s", rawUrl)
 			resp, err := DefaultClient().Get(url)
 			if err != nil {
@@ -97,7 +97,7 @@ func DefineDebugCommandsSelf(kpApp *kingpin.Application) {
 	// Get hook names
 	hookCmd := app.CommandWithDefaultUsageTemplate(kpApp, "hook", "Actions for hooks")
 	hookListCmd := hookCmd.Command("list", "List all hooks.").
-		Action(func(c *kingpin.ParseContext) error {
+		Action(func(_ *kingpin.ParseContext) error {
 			outBytes, err := Hook(DefaultClient()).List(outputFormat)
 			if err != nil {
 				return err
@@ -111,7 +111,7 @@ func DefineDebugCommandsSelf(kpApp *kingpin.Application) {
 	// Get hook snapshots
 	var hookName string
 	hookSnapshotCmd := hookCmd.Command("snapshot", "Dump hook snapshots.").
-		Action(func(c *kingpin.ParseContext) error {
+		Action(func(_ *kingpin.ParseContext) error {
 			outBytes, err := Hook(DefaultClient()).Name(hookName).Snapshots(outputFormat)
 			if err != nil {
 				return err
diff --git a/pkg/executor/executor.go b/pkg/executor/executor.go
index 409dcb88..68cda40e 100644
--- a/pkg/executor/executor.go
+++ b/pkg/executor/executor.go
@@ -122,7 +122,7 @@ func (pl *proxyLogger) Write(p []byte) (int, error) {
 	logLine := string(logLineRaw)
 
 	if len(logLine) > 10000 {
-		logLine = fmt.Sprintf("%s:truncated", string(logLine[:10000]))
+		logLine = fmt.Sprintf("%s:truncated", logLine[:10000])
 
 		logger.Log(context.Background(), log.LevelFatal.Level(), "hook result", slog.Any("hook", map[string]any{
 			"truncated": logLine,
diff --git a/pkg/executor/executor_test.go b/pkg/executor/executor_test.go
index 6a008c3d..6159dc2f 100644
--- a/pkg/executor/executor_test.go
+++ b/pkg/executor/executor_test.go
@@ -3,7 +3,7 @@ package executor
 import (
 	"bytes"
 	"io"
-	"math/rand"
+	"math/rand/v2"
 	"os"
 	"os/exec"
 	"regexp"
@@ -159,7 +159,7 @@ var letterRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
 func randStringRunes(n int) string {
 	b := make([]rune, n)
 	for i := range b {
-		b[i] = letterRunes[rand.Intn(len(letterRunes))]
+		b[i] = letterRunes[rand.IntN(len(letterRunes))]
 	}
 	return string(b)
 }
diff --git a/pkg/hook/config/config_test.go b/pkg/hook/config/config_test.go
index d47c57a5..5d1b828a 100644
--- a/pkg/hook/config/config_test.go
+++ b/pkg/hook/config/config_test.go
@@ -775,7 +775,7 @@ settings:
 	}
 
 	for _, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
+		t.Run(test.name, func(_ *testing.T) {
 			hookConfig = &HookConfig{}
 			err = hookConfig.LoadAndValidate([]byte(test.jsonConfig))
 			test.testFn()
@@ -1045,7 +1045,7 @@ func Test_HookConfig_V1_Kubernetes_Validate(t *testing.T) {
 	}
 
 	for _, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
+		t.Run(test.name, func(_ *testing.T) {
 			hookConfig = &HookConfig{}
 			err = hookConfig.LoadAndValidate([]byte(test.jsonText))
 			test.testFn()
@@ -1083,7 +1083,7 @@ func Test_MergeArrays(t *testing.T) {
 	}
 
 	for _, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
+		t.Run(test.name, func(_ *testing.T) {
 			res := MergeArrays(test.a1, test.a2)
 			g.Expect(res).To(Equal(test.expect))
 		})
diff --git a/pkg/hook/config/validator_test.go b/pkg/hook/config/validator_test.go
index 16a4f698..6bc3533f 100644
--- a/pkg/hook/config/validator_test.go
+++ b/pkg/hook/config/validator_test.go
@@ -144,7 +144,7 @@ func Test_Validate_V1_With_Error(t *testing.T) {
 		},
 	}
 	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
+		t.Run(tt.name, func(_ *testing.T) {
 			vu = prepareConfigObj(g, tt.configText)
 			s := GetSchema(vu.Version)
 			err = ValidateConfig(vu.Obj, s, "root")
diff --git a/pkg/hook/config/versioned_untyped_test.go b/pkg/hook/config/versioned_untyped_test.go
index 93971f60..aa250db3 100644
--- a/pkg/hook/config/versioned_untyped_test.go
+++ b/pkg/hook/config/versioned_untyped_test.go
@@ -136,7 +136,7 @@ schedule:
 	}
 
 	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
+		t.Run(tt.name, func(_ *testing.T) {
 			vu = NewDefaultVersionedUntyped()
 			err = vu.Load([]byte(tt.input))
 
diff --git a/pkg/hook/controller/conversion_bindings_controller.go b/pkg/hook/controller/conversion_bindings_controller.go
index 9f56e21e..d64e3939 100644
--- a/pkg/hook/controller/conversion_bindings_controller.go
+++ b/pkg/hook/controller/conversion_bindings_controller.go
@@ -69,7 +69,7 @@ func (c *ConversionBindingsController) DisableConversionBindings() {
 	// TODO dynamic enable/disable conversion webhooks.
 }
 
-func (c *ConversionBindingsController) CanHandleEvent(crdName string, request *v1.ConversionRequest, rule conversion.Rule) bool {
+func (c *ConversionBindingsController) CanHandleEvent(crdName string, _ *v1.ConversionRequest, rule conversion.Rule) bool {
 	_, has := c.Links[crdName]
 	if !has {
 		return false
diff --git a/pkg/hook/controller/hook_controller.go b/pkg/hook/controller/hook_controller.go
index f69c77c0..54cd166d 100644
--- a/pkg/hook/controller/hook_controller.go
+++ b/pkg/hook/controller/hook_controller.go
@@ -63,6 +63,7 @@ func (hc *HookController) InitKubernetesBindings(bindings []OnKubernetesEventCon
 	bindingCtrl.WithKubernetesBindings(bindings)
 	hc.KubernetesController = bindingCtrl
 	hc.kubernetesBindings = bindings
+	hc.logger = logger
 }
 
 func (hc *HookController) InitScheduleBindings(bindings []ScheduleConfig, scheduleMgr schedule_manager.ScheduleManager) {
diff --git a/pkg/hook/hook_test.go b/pkg/hook/hook_test.go
index 25090a3d..b7c28cf8 100644
--- a/pkg/hook/hook_test.go
+++ b/pkg/hook/hook_test.go
@@ -87,7 +87,7 @@ func Test_CreateLimiter(t *testing.T) {
 	}
 
 	for _, c := range cases {
-		t.Run(c.title, func(t *testing.T) {
+		t.Run(c.title, func(_ *testing.T) {
 			cfg := &config.HookConfig{
 				Settings: c.settings,
 			}
@@ -135,7 +135,7 @@ func Test_Hook_WithConfig(t *testing.T) {
 	}
 
 	for _, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
+		t.Run(test.name, func(_ *testing.T) {
 			hook = NewHook("hook-sh", "/hooks/hook.sh", log.NewNop())
 			_, err = hook.LoadConfig([]byte(test.jsonData))
 			test.fn()
diff --git a/pkg/kube_events_manager/util.go b/pkg/kube_events_manager/util.go
index f37869eb..b4459d2e 100644
--- a/pkg/kube_events_manager/util.go
+++ b/pkg/kube_events_manager/util.go
@@ -2,7 +2,7 @@ package kube_events_manager
 
 import (
 	"fmt"
-	"math/rand"
+	"math/rand/v2"
 	"time"
 
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -59,9 +59,9 @@ const (
 // randomizedResyncPeriod returns a time.Duration between 2 hours and 4 hours with jitter and granularity
 func randomizedResyncPeriod() time.Duration {
 	spreadCount := ResyncPeriodSpread.Nanoseconds() / ResyncPeriodGranularity.Nanoseconds()
-	rndSpreadDelta := time.Duration(rand.Int63n(spreadCount)) * ResyncPeriodGranularity
+	rndSpreadDelta := time.Duration(rand.Int64N(spreadCount)) * ResyncPeriodGranularity
 	jitterCount := ResyncPeriodGranularity.Nanoseconds() / ResyncPeriodJitterGranularity.Nanoseconds()
-	rndJitterDelta := time.Duration(rand.Int63n(jitterCount)) * ResyncPeriodJitterGranularity
+	rndJitterDelta := time.Duration(rand.Int64N(jitterCount)) * ResyncPeriodJitterGranularity
 
 	return ResyncPeriodMedian - (ResyncPeriodSpread / 2) + rndSpreadDelta + rndJitterDelta
 }
diff --git a/pkg/schedule_manager/schedule_manager_test.go b/pkg/schedule_manager/schedule_manager_test.go
index c0802ffe..21efbc2b 100644
--- a/pkg/schedule_manager/schedule_manager_test.go
+++ b/pkg/schedule_manager/schedule_manager_test.go
@@ -39,7 +39,7 @@ func Test_ScheduleManager_Add(t *testing.T) {
 	}
 
 	for _, expectation := range expectations {
-		t.Run(expectation.testName, func(t *testing.T) {
+		t.Run(expectation.testName, func(_ *testing.T) {
 			sm.Add(types.ScheduleEntry{Crontab: expectation.crontab, Id: expectation.id})
 
 			// if expectation.err != "" {
diff --git a/pkg/shell-operator/combine_binding_context_test.go b/pkg/shell-operator/combine_binding_context_test.go
index fa36a2bb..96106dbb 100644
--- a/pkg/shell-operator/combine_binding_context_test.go
+++ b/pkg/shell-operator/combine_binding_context_test.go
@@ -20,7 +20,7 @@ func Test_CombineBindingContext_MultipleHooks(t *testing.T) {
 
 	TaskQueues := queue.NewTaskQueueSet()
 	TaskQueues.WithContext(context.Background())
-	TaskQueues.NewNamedQueue("test_multiple_hooks", func(tsk task.Task) queue.TaskResult {
+	TaskQueues.NewNamedQueue("test_multiple_hooks", func(_ task.Task) queue.TaskResult {
 		return queue.TaskResult{
 			Status: "Success",
 		}
@@ -114,7 +114,7 @@ func Test_CombineBindingContext_Nil_On_NoCombine(t *testing.T) {
 
 	TaskQueues := queue.NewTaskQueueSet()
 	TaskQueues.WithContext(context.Background())
-	TaskQueues.NewNamedQueue("test_no_combine", func(tsk task.Task) queue.TaskResult {
+	TaskQueues.NewNamedQueue("test_no_combine", func(_ task.Task) queue.TaskResult {
 		return queue.TaskResult{
 			Status: "Success",
 		}
@@ -173,7 +173,7 @@ func Test_CombineBindingContext_Group_Compaction(t *testing.T) {
 
 	TaskQueues := queue.NewTaskQueueSet()
 	TaskQueues.WithContext(context.Background())
-	TaskQueues.NewNamedQueue("test_multiple_hooks", func(tsk task.Task) queue.TaskResult {
+	TaskQueues.NewNamedQueue("test_multiple_hooks", func(_ task.Task) queue.TaskResult {
 		return queue.TaskResult{
 			Status: "Success",
 		}
@@ -275,7 +275,7 @@ func Test_CombineBindingContext_Group_Type(t *testing.T) {
 
 	TaskQueues := queue.NewTaskQueueSet()
 	TaskQueues.WithContext(context.Background())
-	TaskQueues.NewNamedQueue("test_multiple_hooks", func(tsk task.Task) queue.TaskResult {
+	TaskQueues.NewNamedQueue("test_multiple_hooks", func(_ task.Task) queue.TaskResult {
 		return queue.TaskResult{
 			Status: "Success",
 		}
diff --git a/pkg/shell-operator/http_server.go b/pkg/shell-operator/http_server.go
index 506e7e31..ebda8d13 100644
--- a/pkg/shell-operator/http_server.go
+++ b/pkg/shell-operator/http_server.go
@@ -77,9 +77,9 @@ func newBaseHTTPServer(address, port string) *baseHTTPServer {
 	// inject pprof
 	router.Mount("/debug", middleware.Profiler())
 
-	router.Get("/discovery", func(writer http.ResponseWriter, request *http.Request) {
+	router.Get("/discovery", func(writer http.ResponseWriter, _ *http.Request) {
 		buf := bytes.NewBuffer(nil)
-		walkFn := func(method string, route string, handler http.Handler, middlewares ...func(http.Handler) http.Handler) error {
+		walkFn := func(method string, route string, _ http.Handler, _ ...func(http.Handler) http.Handler) error {
 			// skip pprof routes
 			if strings.HasPrefix(route, "/debug/") {
 				return nil
@@ -110,7 +110,7 @@ func newBaseHTTPServer(address, port string) *baseHTTPServer {
 }
 
 func registerRootRoute(op *ShellOperator) {
-	op.APIServer.RegisterRoute(http.MethodGet, "/", func(writer http.ResponseWriter, request *http.Request) {
+	op.APIServer.RegisterRoute(http.MethodGet, "/", func(writer http.ResponseWriter, _ *http.Request) {
 		_, _ = fmt.Fprintf(writer, `<html>
   <head><title>Shell operator</title></head>
   <body>
diff --git a/pkg/task/dump/dump_test.go b/pkg/task/dump/dump_test.go
index dd571e07..062d97e6 100644
--- a/pkg/task/dump/dump_test.go
+++ b/pkg/task/dump/dump_test.go
@@ -74,7 +74,7 @@ func Test_Dump(t *testing.T) {
 	tqs.WithContext(context.Background())
 
 	// Empty set, no queues, dump should not fail.
-	t.Run("empty set", func(t *testing.T) {
+	t.Run("empty set", func(_ *testing.T) {
 		dump := testDumpQueuesWrapper(tqs, "text", true)
 		g.Expect(dump).To(ContainSubstring("No queues"))
 	})
@@ -94,7 +94,7 @@ func Test_Dump(t *testing.T) {
 		g.Expect(dump).To(MatchJSON(`{"active":[],"summary":{"mainQueueTasks":0,"otherQueues":{"active":0,"empty":0,"tasks":0},"totalTasks":0}}`))
 	})
 
-	t.Run("main queue as active", func(t *testing.T) {
+	t.Run("main queue as active", func(_ *testing.T) {
 		fillQueue(tqs.GetMain(), mainTasks)
 
 		// Main queue is not counted as active or empty queue.
@@ -104,7 +104,7 @@ func Test_Dump(t *testing.T) {
 	})
 
 	// Create and fill active queue.
-	t.Run("fill active queue", func(t *testing.T) {
+	t.Run("fill active queue", func(_ *testing.T) {
 		tqs.NewNamedQueue("active-queue", nil)
 		fillQueue(tqs.GetByName("active-queue"), activeTasks)
 
@@ -128,7 +128,7 @@ func Test_Dump(t *testing.T) {
 		g.Expect(dump).To(MatchJSON(`{"active":[{"name":"main","tasksCount":5,"tasks":[{"index":1,"description":":::test_task_main_0004"},{"index":2,"description":":::test_task_main_0003"},{"index":3,"description":":::test_task_main_0002"},{"index":4,"description":":::test_task_main_0001"},{"index":5,"description":":::test_task_main_0000"}]},{"name":"active-queue","tasksCount":4,"tasks":[{"index":1,"description":":::test_task_active-queue_0003"},{"index":2,"description":":::test_task_active-queue_0002"},{"index":3,"description":":::test_task_active-queue_0001"},{"index":4,"description":":::test_task_active-queue_0000"}]}],"empty":[{"name":"empty","tasksCount":0}],"summary":{"mainQueueTasks":5,"otherQueues":{"active":1,"empty":1,"tasks":4},"totalTasks":9}}`))
 	})
 
-	t.Run("omit empty queue", func(t *testing.T) {
+	t.Run("omit empty queue", func(_ *testing.T) {
 		dump := testDumpQueuesWrapper(tqs, "text", false)
 		g.Expect(dump).To(ContainSubstring("1 active"))
 		g.Expect(dump).ToNot(ContainSubstring("Empty queues (1):"))
diff --git a/pkg/task/queue/task_queue_test.go b/pkg/task/queue/task_queue_test.go
index 7f967dc2..52d5d645 100644
--- a/pkg/task/queue/task_queue_test.go
+++ b/pkg/task/queue/task_queue_test.go
@@ -114,7 +114,7 @@ func Test_ExponentialBackoff(t *testing.T) {
 	// Set exponential backoff to the constant delay just to wait more than DelayOnQueueIsEmpty.
 	// It is a test of delaying between task runs, not a test of exponential distribution.
 	mockExponentialDelay := 30 * time.Millisecond
-	q.ExponentialBackoffFn = func(failureCount int) time.Duration {
+	q.ExponentialBackoffFn = func(_ int) time.Duration {
 		return mockExponentialDelay
 	}
 
@@ -201,7 +201,7 @@ func Test_CancelDelay(t *testing.T) {
 	// Set exponential backoff to the constant delay just to wait more than DelayOnQueueIsEmpty.
 	// It is a test of delaying between task runs, not a test of exponential distribution.
 	mockExponentialDelay := 150 * time.Millisecond
-	q.ExponentialBackoffFn = func(failureCount int) time.Duration {
+	q.ExponentialBackoffFn = func(_ int) time.Duration {
 		return mockExponentialDelay
 	}
 
diff --git a/pkg/utils/exponential_backoff/delay.go b/pkg/utils/exponential_backoff/delay.go
index 6178228b..ccb87799 100644
--- a/pkg/utils/exponential_backoff/delay.go
+++ b/pkg/utils/exponential_backoff/delay.go
@@ -2,7 +2,7 @@ package exponential_backoff
 
 import (
 	"math"
-	"math/rand"
+	"math/rand/v2"
 	"time"
 )
 
@@ -52,7 +52,7 @@ func CalculateDelayWithMax(initialDelay time.Duration, maxDelay time.Duration, r
 	}
 
 	// Random addition to delay.
-	rndDelayNs := rand.Int63n(ExponentialDelayRandomMs) * int64(time.Millisecond)
+	rndDelayNs := rand.Int64N(ExponentialDelayRandomMs) * int64(time.Millisecond)
 
 	delay := initialDelay + time.Duration(delayNs) + time.Duration(rndDelayNs)
 	delay = delay.Truncate(100 * time.Millisecond)
diff --git a/pkg/utils/exponential_backoff/delay_test.go b/pkg/utils/exponential_backoff/delay_test.go
index b731febe..d43256a6 100644
--- a/pkg/utils/exponential_backoff/delay_test.go
+++ b/pkg/utils/exponential_backoff/delay_test.go
@@ -1,7 +1,6 @@
 package exponential_backoff
 
 import (
-	"math/rand"
 	"testing"
 	"time"
 )
@@ -9,7 +8,6 @@ import (
 func Test_Delay(t *testing.T) {
 	var initialSeconds int64 = 5
 	initialDelay := time.Duration(5) * time.Second
-	rand.Seed(time.Now().UnixNano())
 	for i := 0; i < 64; i++ {
 		delay := CalculateDelay(initialDelay, i)
 		seconds := int64(delay.Seconds())
diff --git a/pkg/webhook/conversion/handler.go b/pkg/webhook/conversion/handler.go
index 0aa74093..dcff8ae6 100644
--- a/pkg/webhook/conversion/handler.go
+++ b/pkg/webhook/conversion/handler.go
@@ -2,6 +2,7 @@ package conversion
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"log/slog"
 	"net/http"
@@ -98,7 +99,7 @@ func (h *WebhookHandler) handleReviewRequest(crdName string, request *v1.Convers
 	}
 
 	if conversionResponse.FailedMessage != "" {
-		return nil, fmt.Errorf(conversionResponse.FailedMessage)
+		return nil, errors.New(conversionResponse.FailedMessage)
 	}
 
 	if len(request.Objects) != len(conversionResponse.ConvertedObjects) {