diff --git a/client.go b/client.go
index 1cc33690..94f019cc 100644
--- a/client.go
+++ b/client.go
@@ -6,7 +6,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"math/rand"
 	"net/http"
@@ -60,7 +59,7 @@ func (r *lockedRand) Float64() float64 {
 // other hand, the source returned from rand.NewSource is not safe for
 // concurrent use, so we need to couple its use with a sync.Mutex.
 var rng = &lockedRand{
-	//#nosec G404 -- We are fine using transparent, non-secure value here.
+	// #nosec G404 -- We are fine using transparent, non-secure value here.
 	r: rand.New(rand.NewSource(time.Now().UnixNano())),
 }
 
@@ -74,7 +73,7 @@ type usageError struct {
 
 // Logger is an instance of log.Logger that is use to provide debug information about running Sentry Client
 // can be enabled by either using Logger.SetOutput directly or with Debug client option.
-var Logger = log.New(ioutil.Discard, "[Sentry] ", log.LstdFlags)
+var Logger = log.New(io.Discard, "[Sentry] ", log.LstdFlags)
 
 // EventProcessor is a function that processes an event.
 // Event processors are used to change an event before it is sent to Sentry.
@@ -388,7 +387,7 @@ func (client *Client) Recover(err interface{}, hint *EventHint, scope EventModif
 	// use the Context for communicating deadline nor cancelation. All it does
 	// is store the Context in the EventHint and there nil means the Context is
 	// not available.
-	//nolint: staticcheck
+	// nolint: staticcheck
 	return client.RecoverWithContext(nil, err, hint, scope)
 }
 
diff --git a/fasthttp/sentryfasthttp.go b/fasthttp/sentryfasthttp.go
index df098d55..45760071 100644
--- a/fasthttp/sentryfasthttp.go
+++ b/fasthttp/sentryfasthttp.go
@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/url"
 	"time"
@@ -125,7 +125,7 @@ func convert(ctx *fasthttp.RequestCtx) *http.Request {
 	r.URL.RawQuery = string(ctx.URI().QueryString())
 
 	// Body
-	r.Body = ioutil.NopCloser(bytes.NewReader(ctx.Request.Body()))
+	r.Body = io.NopCloser(bytes.NewReader(ctx.Request.Body()))
 
 	return r
 }
diff --git a/http/sentryhttp_test.go b/http/sentryhttp_test.go
index b3287e87..5a9ea530 100644
--- a/http/sentryhttp_test.go
+++ b/http/sentryhttp_test.go
@@ -2,7 +2,7 @@ package sentryhttp_test
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"strings"
@@ -52,7 +52,7 @@ func TestIntegration(t *testing.T) {
 			Body:   "payload",
 			Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 				hub := sentry.GetHubFromContext(r.Context())
-				body, err := ioutil.ReadAll(r.Body)
+				body, err := io.ReadAll(r.Body)
 				if err != nil {
 					t.Error(err)
 				}
@@ -102,7 +102,7 @@ func TestIntegration(t *testing.T) {
 			Body:   largePayload,
 			Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 				hub := sentry.GetHubFromContext(r.Context())
-				body, err := ioutil.ReadAll(r.Body)
+				body, err := io.ReadAll(r.Body)
 				if err != nil {
 					t.Error(err)
 				}
diff --git a/interfaces_test.go b/interfaces_test.go
index 39eae50e..02dff0c1 100644
--- a/interfaces_test.go
+++ b/interfaces_test.go
@@ -4,8 +4,8 @@ import (
 	"encoding/json"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"net/http/httptest"
+	"os"
 	"path/filepath"
 	"strings"
 	"testing"
@@ -163,13 +163,13 @@ func TestStructSnapshots(t *testing.T) {
 
 			golden := filepath.Join(".", "testdata", fmt.Sprintf("%s.golden", test.testName))
 			if *update {
-				err := ioutil.WriteFile(golden, got, 0600)
+				err := os.WriteFile(golden, got, 0600)
 				if err != nil {
 					t.Fatal(err)
 				}
 			}
 
-			want, err := ioutil.ReadFile(golden)
+			want, err := os.ReadFile(golden)
 			if err != nil {
 				t.Fatal(err)
 			}
diff --git a/marshal_test.go b/marshal_test.go
index 25e70389..88d02dfa 100644
--- a/marshal_test.go
+++ b/marshal_test.go
@@ -5,7 +5,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -181,7 +180,7 @@ func WriteGoldenFile(t *testing.T, path string, bytes []byte) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	err = ioutil.WriteFile(path, bytes, 0666)
+	err = os.WriteFile(path, bytes, 0666)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -189,7 +188,7 @@ func WriteGoldenFile(t *testing.T, path string, bytes []byte) {
 
 func ReadOrGenerateGoldenFile(t *testing.T, path string, bytes []byte) string {
 	t.Helper()
-	b, err := ioutil.ReadFile(path)
+	b, err := os.ReadFile(path)
 	switch {
 	case errors.Is(err, os.ErrNotExist):
 		if *generate {
diff --git a/scope.go b/scope.go
index f53d39d7..029c2f6e 100644
--- a/scope.go
+++ b/scope.go
@@ -146,7 +146,7 @@ const maxRequestBodyBytes = 10 * 1024
 
 // A limitedBuffer is like a bytes.Buffer, but limited to store at most Capacity
 // bytes. Any writes past the capacity are silently discarded, similar to
-// ioutil.Discard.
+// io.Discard.
 type limitedBuffer struct {
 	Capacity int
 
diff --git a/sourcereader.go b/sourcereader.go
index 2cf67001..74a08384 100644
--- a/sourcereader.go
+++ b/sourcereader.go
@@ -2,7 +2,7 @@ package sentry
 
 import (
 	"bytes"
-	"io/ioutil"
+	"os"
 	"sync"
 )
 
@@ -24,7 +24,7 @@ func (sr *sourceReader) readContextLines(filename string, line, context int) ([]
 	lines, ok := sr.cache[filename]
 
 	if !ok {
-		data, err := ioutil.ReadFile(filename)
+		data, err := os.ReadFile(filename)
 		if err != nil {
 			sr.cache[filename] = nil
 			return nil, 0
diff --git a/transport.go b/transport.go
index 6a474179..b2f4f09b 100644
--- a/transport.go
+++ b/transport.go
@@ -7,7 +7,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"net/url"
 	"sync"
@@ -53,7 +52,7 @@ func getProxyConfig(options ClientOptions) func(*http.Request) (*url.URL, error)
 
 func getTLSConfig(options ClientOptions) *tls.Config {
 	if options.CaCerts != nil {
-		//#nosec G402 -- We should be using `MinVersion: tls.VersionTLS12`,
+		// #nosec G402 -- We should be using `MinVersion: tls.VersionTLS12`,
 		// 				 but we don't want to break peoples code without the major bump.
 		return &tls.Config{
 			RootCAs: options.CaCerts,
@@ -401,7 +400,7 @@ func (t *HTTPTransport) worker() {
 			t.mu.Unlock()
 			// Drain body up to a limit and close it, allowing the
 			// transport to reuse TCP connections.
-			_, _ = io.CopyN(ioutil.Discard, response.Body, maxDrainResponseBytes)
+			_, _ = io.CopyN(io.Discard, response.Body, maxDrainResponseBytes)
 			response.Body.Close()
 		}
 
@@ -529,7 +528,7 @@ func (t *HTTPSyncTransport) SendEvent(event *Event) {
 
 	// Drain body up to a limit and close it, allowing the
 	// transport to reuse TCP connections.
-	_, _ = io.CopyN(ioutil.Discard, response.Body, maxDrainResponseBytes)
+	_, _ = io.CopyN(io.Discard, response.Body, maxDrainResponseBytes)
 	response.Body.Close()
 }
 
diff --git a/transport_test.go b/transport_test.go
index 9267a7af..82d2f170 100644
--- a/transport_test.go
+++ b/transport_test.go
@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"net/http/httptrace"
@@ -459,7 +459,7 @@ func testRateLimiting(t *testing.T, tr Transport) {
 
 	// Test server that simulates responses with rate limits.
 	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		b, err := ioutil.ReadAll(r.Body)
+		b, err := io.ReadAll(r.Body)
 		if err != nil {
 			panic(err)
 		}