diff --git a/cmd/runner/tui.go b/cmd/runner/tui.go
index 7513f09..187dbc9 100644
--- a/cmd/runner/tui.go
+++ b/cmd/runner/tui.go
@@ -3,7 +3,7 @@ package runner
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
+	"os"
 	"os/exec"
 	"sync"
 	"sync/atomic"
@@ -78,13 +78,13 @@ func (t *tui) createIfNotExists(acct resource.Account) {
 		t.main.SetText(tview.TranslateANSI(currText()))
 	})
 
-	file, err := ioutil.TempFile("/tmp", acctId)
+	file, err := os.CreateTemp("/tmp", acctId)
 	if err != nil {
 		panic(err)
 	}
 
 	setter := func() string {
-		bytes, err := ioutil.ReadFile(file.Name())
+		bytes, err := os.ReadFile(file.Name())
 		if err != nil {
 			fmt.Printf("ERR: %s \n", err)
 			return ""
diff --git a/lib/telophase/account.go b/lib/telophase/account.go
index c79ac4a..e2f20ec 100644
--- a/lib/telophase/account.go
+++ b/lib/telophase/account.go
@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"os"
 )
@@ -35,7 +35,7 @@ func UpsertAccount(accountID string, accountName string) {
 		}
 		if resp.StatusCode != 200 {
 			defer resp.Body.Close()
-			body, err := ioutil.ReadAll(resp.Body)
+			body, err := io.ReadAll(resp.Body)
 			if err != nil {
 				fmt.Println(err)
 			}
@@ -58,7 +58,7 @@ func RecordDeploy(accountID string, accountName string) {
 		}
 		if resp.StatusCode != 200 {
 			defer resp.Body.Close()
-			body, err := ioutil.ReadAll(resp.Body)
+			body, err := io.ReadAll(resp.Body)
 			if err != nil {
 				fmt.Println(err)
 			}
diff --git a/lib/terraform/local.go b/lib/terraform/local.go
index e74f62c..ae29481 100644
--- a/lib/terraform/local.go
+++ b/lib/terraform/local.go
@@ -5,7 +5,6 @@ import (
 	"encoding/hex"
 	"fmt"
 	"io/fs"
-	"io/ioutil"
 	"os"
 	"path"
 	"path/filepath"
@@ -57,7 +56,7 @@ func replaceVariablesInFile(srcFile, dstFile string, resource resource.Resource,
 		return oops.Wrapf(err, "error accessing file %s", srcFile)
 	}
 
-	content, err := ioutil.ReadFile(srcFile)
+	content, err := os.ReadFile(srcFile)
 	if err != nil {
 		return err
 	}
@@ -81,5 +80,5 @@ func replaceVariablesInFile(srcFile, dstFile string, resource resource.Resource,
 		return oops.Errorf("Region needs to be set on stack if performing substitution")
 	}
 
-	return ioutil.WriteFile(dstFile, []byte(updatedContent), fileInfo.Mode())
+	return os.WriteFile(dstFile, []byte(updatedContent), fileInfo.Mode())
 }
diff --git a/lib/ymlparser/organization.go b/lib/ymlparser/organization.go
index 036311f..1763721 100644
--- a/lib/ymlparser/organization.go
+++ b/lib/ymlparser/organization.go
@@ -4,7 +4,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
 
 	"github.com/aws/aws-sdk-go/aws"
@@ -34,7 +33,7 @@ func (o Parser) ParseOrganization(ctx context.Context, filepath string) (*resour
 		return nil, errors.New("filepath is empty")
 	}
 
-	data, err := ioutil.ReadFile(filepath)
+	data, err := os.ReadFile(filepath)
 	if err != nil {
 		return nil, fmt.Errorf("err: %s reading file %s", err.Error(), filepath)
 	}
@@ -65,7 +64,7 @@ func (o Parser) ParseOrganization(ctx context.Context, filepath string) (*resour
 
 func (p Parser) hydrateOUFilepaths(ctx context.Context, ou *resource.OrganizationUnit) error {
 	if ou.OUFilepath != nil {
-		data, err := ioutil.ReadFile(*ou.OUFilepath)
+		data, err := os.ReadFile(*ou.OUFilepath)
 		if err != nil {
 			return fmt.Errorf("err: %s reading file for OUFilepath %s", err.Error(), *ou.OUFilepath)
 		}
@@ -222,7 +221,7 @@ func WriteOrgFile(filepath string, org *resource.OrganizationUnit) error {
 		return fmt.Errorf("file %s already exists we will not overwrite it", filepath)
 	}
 
-	if err := ioutil.WriteFile(filepath, result, 0644); err != nil {
+	if err := os.WriteFile(filepath, result, 0644); err != nil {
 		return err
 	}
 
diff --git a/resourceoperation/account.go b/resourceoperation/account.go
index 6af1692..e563472 100644
--- a/resourceoperation/account.go
+++ b/resourceoperation/account.go
@@ -56,7 +56,7 @@ func (ao *accountOperation) SetAllowDelete(allowDelete bool) {
 	ao.AllowDelete = allowDelete
 }
 
-func (ao *accountOperation) SetDelegateAdminPrincipal(principal string) {
+func (ao *accountOperation) SetDelegatedAdminPrincipal(principal string) {
 	ao.DelegateAdminPrincipal = principal
 }
 
diff --git a/resourceoperation/organization_unit.go b/resourceoperation/organization_unit.go
index 2e95b02..66fbb4b 100644
--- a/resourceoperation/organization_unit.go
+++ b/resourceoperation/organization_unit.go
@@ -269,7 +269,7 @@ func CollectOrganizationUnitOps(
 								nil,
 								nil,
 							)
-							op.SetDelegateAdminPrincipal(delegatedAdminService)
+							op.SetDelegatedAdminPrincipal(delegatedAdminService)
 							operations = append(operations, op)
 						}
 					}
diff --git a/tests/end2end_test.go b/tests/end2end_test.go
index 8d812f8..9dd5db4 100644
--- a/tests/end2end_test.go
+++ b/tests/end2end_test.go
@@ -3,7 +3,7 @@ package tests
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"runtime/debug"
 	"testing"
 
@@ -1071,7 +1071,7 @@ func TestEndToEnd(t *testing.T) {
 			compareOrganizationUnits(t, test.OrgInitialState, &fetchedOrg, true)
 		}
 
-		err = ioutil.WriteFile("organization.yml", []byte(test.OrgYaml), 0644)
+		err = os.WriteFile("organization.yml", []byte(test.OrgYaml), 0644)
 		assert.NoError(t, err, "Failed to write organization.yml")
 
 		parsedOrg, err := ymlparser.NewParser(orgClient).ParseOrganization(ctx, "organization.yml")