diff --git a/go/libraries/doltcore/sqle/enginetest/testgen_test.go b/go/libraries/doltcore/sqle/enginetest/testgen_test.go
index 07d4801f6d..721e18468d 100644
--- a/go/libraries/doltcore/sqle/enginetest/testgen_test.go
+++ b/go/libraries/doltcore/sqle/enginetest/testgen_test.go
@@ -17,7 +17,6 @@ package enginetest
 import (
 	"bufio"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
@@ -39,12 +38,7 @@ func TestGenNewFormatQueryPlans(t *testing.T) {
 	engine, err := harness.NewEngine(t)
 	require.NoError(t, err)
 
-	tmp, err := ioutil.TempDir("", "*")
-	if err != nil {
-		return
-	}
-
-	outputPath := filepath.Join(tmp, "queryPlans.txt")
+	outputPath := filepath.Join(t.TempDir(), "queryPlans.txt")
 	f, err := os.Create(outputPath)
 	require.NoError(t, err)
 
diff --git a/go/libraries/doltcore/sqle/mysql_file_handler/file_handler.go b/go/libraries/doltcore/sqle/mysql_file_handler/file_handler.go
index 93ab04809e..4624a46f98 100644
--- a/go/libraries/doltcore/sqle/mysql_file_handler/file_handler.go
+++ b/go/libraries/doltcore/sqle/mysql_file_handler/file_handler.go
@@ -16,7 +16,6 @@ package mysql_file_handler
 
 import (
 	"errors"
-	"io/ioutil"
 	"os"
 	"sync"
 
@@ -53,7 +52,7 @@ func (p *Persister) Persist(ctx *sql.Context, data []byte) error {
 		}
 	}
 
-	return ioutil.WriteFile(p.privsFilePath, data, 0777)
+	return os.WriteFile(p.privsFilePath, data, 0777)
 }
 
 // LoadData reads the mysql.db file, returns nil if empty or not found
@@ -67,7 +66,7 @@ func (p Persister) LoadData() ([]byte, error) {
 	defer p.fileMutex.Unlock()
 
 	// read from mysqldbFilePath, error if something other than not-exists
-	buf, err := ioutil.ReadFile(p.privsFilePath)
+	buf, err := os.ReadFile(p.privsFilePath)
 	if err != nil && !errors.Is(err, os.ErrNotExist) {
 		return nil, err
 	}
diff --git a/go/libraries/doltcore/table/typed/parquet/writer_test.go b/go/libraries/doltcore/table/typed/parquet/writer_test.go
index 65ab18489c..fe9f3bac98 100644
--- a/go/libraries/doltcore/table/typed/parquet/writer_test.go
+++ b/go/libraries/doltcore/table/typed/parquet/writer_test.go
@@ -17,8 +17,7 @@ package parquet
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
-	"os"
+	"path"
 	"testing"
 
 	"github.com/dolthub/go-mysql-server/sql"
@@ -83,12 +82,7 @@ John Johnson,21,
 Andy Anderson,27,
 `
 
-	file, err := ioutil.TempFile("", "parquet")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer os.Remove(file.Name())
-	path := file.Name()
+	path := path.Join(t.TempDir(), "parquet")
 
 	rows := getSampleRows()
 
diff --git a/go/libraries/utils/jwtauth/jwks.go b/go/libraries/utils/jwtauth/jwks.go
index a71e172fc6..10ccee12ba 100644
--- a/go/libraries/utils/jwtauth/jwks.go
+++ b/go/libraries/utils/jwtauth/jwks.go
@@ -17,7 +17,7 @@ package jwtauth
 import (
 	"errors"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"os"
 	"sync"
@@ -89,7 +89,7 @@ func (f *fetchedJWKS) GetJWKS() (*jose.JSONWebKeySet, error) {
 			return nil, errors.New("FetchedJWKS: Non-2xx status code from JWKS fetch")
 		} else {
 			defer response.Body.Close()
-			contents, err := ioutil.ReadAll(response.Body)
+			contents, err := io.ReadAll(response.Body)
 			if err != nil {
 				return nil, err
 			}
@@ -229,7 +229,7 @@ func (t *MultiJWKS) fetch(i int) error {
 	if response.StatusCode/100 != 2 {
 		return fmt.Errorf("http request failed: StatusCode: %d", response.StatusCode)
 	}
-	contents, err := ioutil.ReadAll(response.Body)
+	contents, err := io.ReadAll(response.Body)
 	if err != nil {
 		return err
 	}
diff --git a/go/performance/microsysbench/sysbench_test.go b/go/performance/microsysbench/sysbench_test.go
index 8015851153..aac481ac39 100644
--- a/go/performance/microsysbench/sysbench_test.go
+++ b/go/performance/microsysbench/sysbench_test.go
@@ -18,7 +18,7 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
+	"os"
 	"math/rand"
 	"strconv"
 	"strings"
@@ -129,7 +129,7 @@ func setupBenchmark(t *testing.B, dEnv *env.DoltEnv) (*sql.Context, *engine.SqlE
 }
 
 func readTestData(file string) string {
-	data, err := ioutil.ReadFile(file)
+	data, err := os.ReadFile(file)
 	if err != nil {
 		panic(err)
 	}
diff --git a/go/performance/utils/sysbench_runner/config.go b/go/performance/utils/sysbench_runner/config.go
index 9f99a14e46..3949c283f4 100644
--- a/go/performance/utils/sysbench_runner/config.go
+++ b/go/performance/utils/sysbench_runner/config.go
@@ -19,7 +19,6 @@ import (
 	"errors"
 	"fmt"
 	"io/fs"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -448,7 +447,7 @@ func GetTests(config *Config, serverConfig *ServerConfig, testIdFunc func() stri
 
 // FromFileConfig returns a validated Config based on the config file at the configPath
 func FromFileConfig(configPath string) (*Config, error) {
-	data, err := ioutil.ReadFile(configPath)
+	data, err := os.ReadFile(configPath)
 	if err != nil {
 		return nil, err
 	}
diff --git a/go/performance/utils/sysbench_runner/csv_test.go b/go/performance/utils/sysbench_runner/csv_test.go
index 7c88f0d6b6..718c6a1b74 100644
--- a/go/performance/utils/sysbench_runner/csv_test.go
+++ b/go/performance/utils/sysbench_runner/csv_test.go
@@ -16,7 +16,6 @@ package sysbench_runner
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -26,9 +25,8 @@ import (
 )
 
 func TestWriteReadResultsCsv(t *testing.T) {
-	tmpDir, err := ioutil.TempDir("", "TestWriteResultsCsv")
-	require.NoError(t, err)
-	err = os.MkdirAll(tmpDir, os.ModePerm)
+	tmpDir := t.TempDir()
+	err := os.MkdirAll(tmpDir, os.ModePerm)
 	require.NoError(t, err)
 
 	expectedOne := genRandomResult()
diff --git a/go/performance/utils/sysbench_runner/json.go b/go/performance/utils/sysbench_runner/json.go
index 5a0fca38db..389acd8c63 100644
--- a/go/performance/utils/sysbench_runner/json.go
+++ b/go/performance/utils/sysbench_runner/json.go
@@ -17,7 +17,6 @@ package sysbench_runner
 import (
 	"encoding/json"
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 )
@@ -72,7 +71,7 @@ func ReadResultsJson(filename string) (Results, error) {
 
 	var textInput io.Reader = file
 
-	b, err := ioutil.ReadAll(textInput)
+	b, err := io.ReadAll(textInput)
 	if err != nil {
 		return nil, err
 	}
diff --git a/go/performance/utils/sysbench_runner/json_test.go b/go/performance/utils/sysbench_runner/json_test.go
index 3e15060b8c..c49b1b8d98 100644
--- a/go/performance/utils/sysbench_runner/json_test.go
+++ b/go/performance/utils/sysbench_runner/json_test.go
@@ -16,7 +16,6 @@ package sysbench_runner
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -26,8 +25,7 @@ import (
 )
 
 func TestWriteReadResultsJson(t *testing.T) {
-	tmpDir, err := ioutil.TempDir("", "TestWriteResultsJson")
-	require.NoError(t, err)
+	tmpDir := t.TempDir()
 	defer os.RemoveAll(tmpDir)
 
 	expected := &Result{
@@ -36,7 +34,7 @@ func TestWriteReadResultsJson(t *testing.T) {
 	}
 
 	filename := filepath.Join(tmpDir, fmt.Sprintf("test-results%s", JsonExt))
-	err = WriteResultsJson(filename, []*Result{expected})
+	err := WriteResultsJson(filename, []*Result{expected})
 	require.NoError(t, err)
 
 	actual, err := ReadResultsJson(filename)
diff --git a/go/performance/utils/sysbench_runner/run_test.go b/go/performance/utils/sysbench_runner/run_test.go
index 042de5c560..dd85db622c 100644
--- a/go/performance/utils/sysbench_runner/run_test.go
+++ b/go/performance/utils/sysbench_runner/run_test.go
@@ -15,7 +15,6 @@
 package sysbench_runner
 
 import (
-	"io/ioutil"
 	"log"
 	"os"
 	"testing"
@@ -23,12 +22,9 @@ import (
 
 func TestRunner(t *testing.T) {
 	t.Skip()
-	dir, err := ioutil.TempDir("", "prefix")
-	if err != nil {
-		log.Fatal(err)
-	}
+	dir := t.TempDir()
 	log.Println(dir)
-	err = os.Chdir(dir)
+	err := os.Chdir(dir)
 	if err != nil {
 		log.Fatal(err)
 	}
diff --git a/go/performance/utils/tpcc_runner/config.go b/go/performance/utils/tpcc_runner/config.go
index a1f3239584..51cb7316a5 100644
--- a/go/performance/utils/tpcc_runner/config.go
+++ b/go/performance/utils/tpcc_runner/config.go
@@ -18,7 +18,6 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -132,7 +131,7 @@ func (c *TpccBenchmarkConfig) validateServerConfigs() error {
 
 // FromFileConfig returns a validated Config based on the config file at the configPath
 func FromFileConfig(configPath string) (*TpccBenchmarkConfig, error) {
-	data, err := ioutil.ReadFile(configPath)
+	data, err := os.ReadFile(configPath)
 	if err != nil {
 		return nil, err
 	}
diff --git a/go/utils/batsee/main.go b/go/utils/batsee/main.go
index 68bf6b6bc1..7d5b93c160 100644
--- a/go/utils/batsee/main.go
+++ b/go/utils/batsee/main.go
@@ -21,7 +21,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"os/signal"
@@ -167,7 +166,7 @@ func main() {
 	}
 
 	// Get a list of all files in this directory which end in ".bats"
-	files, err := ioutil.ReadDir(cwd)
+	files, err := os.ReadDir(cwd)
 	if err != nil {
 		cli.Println("Error reading directory:", err)
 		os.Exit(1)