diff --git a/pkg/generators/golang/clients_generator.go b/pkg/generators/golang/clients_generator.go
index 94a190d..6600cbe 100644
--- a/pkg/generators/golang/clients_generator.go
+++ b/pkg/generators/golang/clients_generator.go
@@ -764,7 +764,7 @@ func (g *ClientsGenerator) generateRequestSource(method *concepts.Method) {
 	g.buffer.Import("bytes", "")
 	g.buffer.Import("context", "")
 	g.buffer.Import("io", "")
-	g.buffer.Import("io/ioutil", "")
+	g.buffer.Import("os", "")
 	g.buffer.Import("net/http", "")
 	g.buffer.Import("net/url", "")
 	g.buffer.Import(g.packages.ErrorsImport(), "")
@@ -862,7 +862,7 @@ func (g *ClientsGenerator) generateRequestSource(method *concepts.Method) {
 				URL:    uri,
 				Header: header,
 				{{ if $requestBodyParameters }}
-					Body: ioutil.NopCloser(buffer),
+					Body: io.NopCloser(buffer),
 				{{ end }}
 			}
 			if ctx != nil {
@@ -1251,5 +1251,4 @@ var builtinGetters = map[string]interface{}{
 	"Status": nil,
 }
 
-var builtinSetters = map[string]interface{}{
-}
+var builtinSetters = map[string]interface{}{}
diff --git a/pkg/generators/golang/openapi_generator.go b/pkg/generators/golang/openapi_generator.go
index 95284ac..d3097c1 100644
--- a/pkg/generators/golang/openapi_generator.go
+++ b/pkg/generators/golang/openapi_generator.go
@@ -21,7 +21,6 @@ package golang
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 
@@ -142,7 +141,7 @@ func (b *OpenAPIGeneratorBuilder) Build() (generator *OpenAPIGenerator, err erro
 // Run executes the code generator.
 func (g *OpenAPIGenerator) Run() error {
 	// Create a temporary directory to write the OpenAPI JSON to, and remember to delete it:
-	jsonDir, err := ioutil.TempDir("", "openapi")
+	jsonDir, err := os.MkdirTemp("", "openapi")
 	if err != nil {
 		return g.reporter.Errorf("Can't create temporary OpenAPI directory: %v", err)
 	}
@@ -200,7 +199,7 @@ func (g *OpenAPIGenerator) generateSpec(version *concepts.Version, jsonDir strin
 
 	// Read the JSON file that contains the previously generated OpenAPI specification:
 	jsonFile := filepath.Join(jsonDir, g.names.FileName(version))
-	jsonData, err := ioutil.ReadFile(jsonFile)
+	jsonData, err := os.ReadFile(jsonFile)
 	if err != nil {
 		return g.reporter.Errorf(
 			"Can't read JSON file '%s' for version '%s': %v",
diff --git a/pkg/language/main_test.go b/pkg/language/main_test.go
index 6ab4631..9557c9b 100644
--- a/pkg/language/main_test.go
+++ b/pkg/language/main_test.go
@@ -17,7 +17,6 @@ limitations under the License.
 package language
 
 import (
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -37,7 +36,7 @@ func TestLanguage(t *testing.T) {
 // given in the list of pairs. It then reads those model files and returns the resulting model.
 func MakeModel(pairs ...string) *concepts.Model {
 	// Create a temporary directory for the model files:
-	root, err := ioutil.TempDir("", "model-*")
+	root, err := os.MkdirTemp("", "model-*")
 	Expect(err).ToNot(HaveOccurred())
 	defer func() {
 		err = os.RemoveAll(root)
@@ -56,7 +55,7 @@ func MakeModel(pairs ...string) *concepts.Model {
 			err = os.MkdirAll(dir, 0700)
 			Expect(err).ToNot(HaveOccurred())
 		}
-		err = ioutil.WriteFile(path, []byte(data), 0600)
+		err = os.WriteFile(path, []byte(data), 0600)
 		Expect(err).ToNot(HaveOccurred())
 	}
 
diff --git a/pkg/language/model_parser.go b/pkg/language/model_parser.go
index 625ebe6..a55553e 100644
--- a/pkg/language/model_parser.go
+++ b/pkg/language/model_parser.go
@@ -1273,9 +1273,7 @@ func (s *ClassDeclContext) Get_annotation() IAnnotationContext { return s._annot
 
 func (s *ClassDeclContext) GetName() IIdentifierContext { return s.name }
 
-func (s *ClassDeclContext) Get_structMemberDecl() IStructMemberDeclContext {
-	return s._structMemberDecl
-}
+func (s *ClassDeclContext) Get_structMemberDecl() IStructMemberDeclContext { return s._structMemberDecl }
 
 func (s *ClassDeclContext) Set_annotation(v IAnnotationContext) { s._annotation = v }
 
@@ -3675,9 +3673,7 @@ func (s *MethodParameterDeclContext) SetDflt(v ILiteralContext) { s.dflt = v }
 
 func (s *MethodParameterDeclContext) GetAnnotations() []IAnnotationContext { return s.annotations }
 
-func (s *MethodParameterDeclContext) GetDirections() []IParameterDirectionContext {
-	return s.directions
-}
+func (s *MethodParameterDeclContext) GetDirections() []IParameterDirectionContext { return s.directions }
 
 func (s *MethodParameterDeclContext) SetAnnotations(v []IAnnotationContext) { s.annotations = v }
 
@@ -5603,9 +5599,7 @@ func (s *AnnotationParametersContext) GetParameters() []IAnnotationParameterCont
 	return s.parameters
 }
 
-func (s *AnnotationParametersContext) SetParameters(v []IAnnotationParameterContext) {
-	s.parameters = v
-}
+func (s *AnnotationParametersContext) SetParameters(v []IAnnotationParameterContext) { s.parameters = v }
 
 func (s *AnnotationParametersContext) GetResult() map[string]interface{} { return s.result }
 
diff --git a/pkg/language/reader.go b/pkg/language/reader.go
index 2b7c9be..bc65209 100644
--- a/pkg/language/reader.go
+++ b/pkg/language/reader.go
@@ -184,7 +184,7 @@ func (r *Reader) loadModel(dir string) {
 	}
 
 	// List the services:
-	fileInfos, err := ioutil.ReadDir(dir)
+	fileInfos, err := os.ReadDir(dir)
 	if err != nil {
 		r.reporter.Errorf("Can't list model directory '%s': %v", dir, err)
 		return
@@ -231,7 +231,7 @@ func (r *Reader) loadService(dir string) {
 	}
 
 	// List the versions:
-	fileInfos, err := ioutil.ReadDir(dir)
+	fileInfos, err := os.ReadDir(dir)
 	if err != nil {
 		r.reporter.Errorf("Can't list service directory '%s': %v", dir, err)
 		return