diff --git a/condor.go b/condor.go
index 44e929a..f3b6ae6 100644
--- a/condor.go
+++ b/condor.go
@@ -17,7 +17,6 @@ import (
 	"encoding/json"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path"
@@ -116,7 +115,7 @@ func (cl *CondorLauncher) storeConfig(s *model.Job) error {
 		sdir = path.Join(sdir, "logs")
 	}
 	fname := path.Join(sdir, "irods-config")
-	err = ioutil.WriteFile(fname, fileContent.Bytes(), 0644)
+	err = os.WriteFile(fname, fileContent.Bytes(), 0644)
 	if err != nil {
 		return errors.Wrapf(err, "failed to write to file %s", fname)
 	}
diff --git a/fs.go b/fs.go
index f6054c2..a563e93 100644
--- a/fs.go
+++ b/fs.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	"io/ioutil"
 	"os"
 )
 
@@ -19,5 +18,5 @@ func (o *osys) MkdirAll(path string, mode os.FileMode) error {
 }
 
 func (o *osys) WriteFile(path string, contents []byte, mode os.FileMode) error {
-	return ioutil.WriteFile(path, contents, mode)
+	return os.WriteFile(path, contents, mode)
 }
diff --git a/test/utils.go b/test/utils.go
index 34fcc25..9ff5f0d 100644
--- a/test/utils.go
+++ b/test/utils.go
@@ -2,7 +2,7 @@ package test
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"path"
 	"runtime"
@@ -76,7 +76,12 @@ func InitTestsFromFile(t *testing.T, cfg *viper.Viper, filename string) *model.J
 
 	// Load the job submission information from the file.
 	path := getTestFilePath(t, filename)
-	data, err := ioutil.ReadFile(path)
+	f, err := os.Open(path)
+	if err != nil {
+		t.Error(err)
+	}
+	defer f.Close()
+	data, err := io.ReadAll(f)
 	if err != nil {
 		t.Error(err)
 	}