diff --git a/18files/main.go b/18files/main.go
index 12bdd1d..7deb295 100644
--- a/18files/main.go
+++ b/18files/main.go
@@ -3,7 +3,6 @@ package main
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 )
 
@@ -26,7 +25,7 @@ func main() {
 }
 
 func readFile(filname string) {
-	databyte, err := ioutil.ReadFile(filname)
+	databyte, err := os.ReadFile(filname)
 	checkNilErr(err)
 
 	fmt.Println("Text data inside the file is \n", string(databyte))
diff --git a/19webrequests/main.go b/19webrequests/main.go
index db219ee..1811498 100644
--- a/19webrequests/main.go
+++ b/19webrequests/main.go
@@ -2,7 +2,7 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 )
 
@@ -21,7 +21,7 @@ func main() {
 
 	defer response.Body.Close() // caller's responsibility to close the connection
 
-	databytes, err := ioutil.ReadAll(response.Body)
+	databytes, err := io.ReadAll(response.Body)
 
 	if err != nil {
 		panic(err)
diff --git a/21webreqverbs/main.go b/21webreqverbs/main.go
index dedf4af..51c0687 100644
--- a/21webreqverbs/main.go
+++ b/21webreqverbs/main.go
@@ -2,7 +2,7 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/url"
 	"strings"
@@ -29,7 +29,7 @@ func PerformGetRequest() {
 	fmt.Println("Content length is: ", response.ContentLength)
 
 	var responseString strings.Builder
-	content, _ := ioutil.ReadAll(response.Body)
+	content, _ := io.ReadAll(response.Body)
 	byteCount, _ := responseString.Write(content)
 
 	fmt.Println("ByteCount is: ", byteCount)
@@ -59,7 +59,7 @@ func PerformPostJsonRequest() {
 	}
 	defer response.Body.Close()
 
-	content, _ := ioutil.ReadAll(response.Body)
+	content, _ := io.ReadAll(response.Body)
 
 	fmt.Println(string(content))
 }
@@ -81,7 +81,7 @@ func PerformPostFormRequest() {
 
 	defer response.Body.Close()
 
-	content, _ := ioutil.ReadAll(response.Body)
+	content, _ := io.ReadAll(response.Body)
 	fmt.Println(string(content))
 
 }