diff --git a/README.md b/README.md
index 9d0d806ef..c3204ef11 100644
--- a/README.md
+++ b/README.md
@@ -41,8 +41,8 @@ A MySQL-Driver for Go's [database/sql](https://golang.org/pkg/database/sql/) pac
 
 ## Requirements
 
-* Go 1.19 or higher. We aim to support the 3 latest versions of Go.
-* MySQL (5.7+) and MariaDB (10.3+) are supported.
+* Go 1.20 or higher. We aim to support the 3 latest versions of Go.
+* MySQL (5.7+) and MariaDB (10.5+) are supported.
 * [TiDB](https://github.com/pingcap/tidb) is supported by PingCAP.
   * Do not ask questions about TiDB in our issue tracker or forum.
   * [Document](https://docs.pingcap.com/tidb/v6.1/dev-guide-sample-application-golang)
diff --git a/atomic_bool.go b/atomic_bool.go
deleted file mode 100644
index 1b7e19f3e..000000000
--- a/atomic_bool.go
+++ /dev/null
@@ -1,19 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package.
-//
-// Copyright 2022 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-//go:build go1.19
-// +build go1.19
-
-package mysql
-
-import "sync/atomic"
-
-/******************************************************************************
-*                               Sync utils                                    *
-******************************************************************************/
-
-type atomicBool = atomic.Bool
diff --git a/atomic_bool_go118.go b/atomic_bool_go118.go
deleted file mode 100644
index 2e9a7f0b6..000000000
--- a/atomic_bool_go118.go
+++ /dev/null
@@ -1,47 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package.
-//
-// Copyright 2022 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-//go:build !go1.19
-// +build !go1.19
-
-package mysql
-
-import "sync/atomic"
-
-/******************************************************************************
-*                               Sync utils                                    *
-******************************************************************************/
-
-// atomicBool is an implementation of atomic.Bool for older version of Go.
-// it is a wrapper around uint32 for usage as a boolean value with
-// atomic access.
-type atomicBool struct {
-	_     noCopy
-	value uint32
-}
-
-// Load returns whether the current boolean value is true
-func (ab *atomicBool) Load() bool {
-	return atomic.LoadUint32(&ab.value) > 0
-}
-
-// Store sets the value of the bool regardless of the previous value
-func (ab *atomicBool) Store(value bool) {
-	if value {
-		atomic.StoreUint32(&ab.value, 1)
-	} else {
-		atomic.StoreUint32(&ab.value, 0)
-	}
-}
-
-// Swap sets the value of the bool and returns the old value.
-func (ab *atomicBool) Swap(value bool) bool {
-	if value {
-		return atomic.SwapUint32(&ab.value, 1) > 0
-	}
-	return atomic.SwapUint32(&ab.value, 0) > 0
-}
diff --git a/atomic_bool_test.go b/atomic_bool_test.go
deleted file mode 100644
index a3b4ea0e8..000000000
--- a/atomic_bool_test.go
+++ /dev/null
@@ -1,71 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package.
-//
-// Copyright 2022 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-//go:build !go1.19
-// +build !go1.19
-
-package mysql
-
-import (
-	"testing"
-)
-
-func TestAtomicBool(t *testing.T) {
-	var ab atomicBool
-	if ab.Load() {
-		t.Fatal("Expected value to be false")
-	}
-
-	ab.Store(true)
-	if ab.value != 1 {
-		t.Fatal("Set(true) did not set value to 1")
-	}
-	if !ab.Load() {
-		t.Fatal("Expected value to be true")
-	}
-
-	ab.Store(true)
-	if !ab.Load() {
-		t.Fatal("Expected value to be true")
-	}
-
-	ab.Store(false)
-	if ab.value != 0 {
-		t.Fatal("Set(false) did not set value to 0")
-	}
-	if ab.Load() {
-		t.Fatal("Expected value to be false")
-	}
-
-	ab.Store(false)
-	if ab.Load() {
-		t.Fatal("Expected value to be false")
-	}
-	if ab.Swap(false) {
-		t.Fatal("Expected the old value to be false")
-	}
-	if ab.Swap(true) {
-		t.Fatal("Expected the old value to be false")
-	}
-	if !ab.Load() {
-		t.Fatal("Expected value to be true")
-	}
-
-	ab.Store(true)
-	if !ab.Load() {
-		t.Fatal("Expected value to be true")
-	}
-	if !ab.Swap(true) {
-		t.Fatal("Expected the old value to be true")
-	}
-	if !ab.Swap(false) {
-		t.Fatal("Expected the old value to be true")
-	}
-	if ab.Load() {
-		t.Fatal("Expected value to be false")
-	}
-}
diff --git a/connection.go b/connection.go
index c170114fe..55e42eb18 100644
--- a/connection.go
+++ b/connection.go
@@ -17,6 +17,7 @@ import (
 	"net"
 	"strconv"
 	"strings"
+	"sync/atomic"
 	"time"
 )
 
@@ -41,7 +42,7 @@ type mysqlConn struct {
 	closech  chan struct{}
 	finished chan<- struct{}
 	canceled atomicError // set non-nil if conn is canceled
-	closed   atomicBool  // set when conn is closed, before closech is closed
+	closed   atomic.Bool // set when conn is closed, before closech is closed
 }
 
 // Handles parameters set in DSN after the connection is established
diff --git a/go.mod b/go.mod
index 4629714c0..2eed53ebb 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,5 @@
 module github.com/go-sql-driver/mysql
 
-go 1.18
+go 1.20
 
 require filippo.io/edwards25519 v1.1.0