diff --git a/renovate.json b/.github/renovate.json
similarity index 100%
rename from renovate.json
rename to .github/renovate.json
diff --git a/.github/workflows/golangci-lint.yaml b/.github/workflows/golangci-lint.yaml
index f31ac65..ae7b71b 100644
--- a/.github/workflows/golangci-lint.yaml
+++ b/.github/workflows/golangci-lint.yaml
@@ -13,12 +13,12 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
-          go-version: '1.20'
-          cache: false
+          go-version: stable
+          cache-dependency-path: go/go.sum
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v6
         with:
           install-mode: "goinstall"
-          version: latest
+          version: v1.59
           working-directory: go
           args: --config="${GITHUB_WORKSPACE}/go/.golangci.yaml"
diff --git a/go/cmd/glox/glox_test.go b/go/cmd/glox/glox_test.go
index cdd3df4..1a8e066 100644
--- a/go/cmd/glox/glox_test.go
+++ b/go/cmd/glox/glox_test.go
@@ -17,7 +17,7 @@ const TestDirectory = "../../../test/"
 func TestRunFile(t *testing.T) {
 	t.Parallel()
 
-	err := filepath.WalkDir(TestDirectory, func(path string, d fs.DirEntry, err error) error {
+	err := filepath.WalkDir(TestDirectory, func(path string, _ fs.DirEntry, _ error) error {
 		pattern := regexp.MustCompile("^.*expect: (.*)$")
 
 		t.Run(path, func(t *testing.T) {
diff --git a/go/go.mod b/go/go.mod
index f0058ab..c6dece6 100644
--- a/go/go.mod
+++ b/go/go.mod
@@ -1,6 +1,6 @@
 module github.com/fpotier/lox/go
 
-go 1.20
+go 1.21
 
 require github.com/sean-/sysexits v1.0.0
 
diff --git a/go/pkg/ast/loxvalue.go b/go/pkg/ast/loxvalue.go
index bf3f73a..5ecea9a 100644
--- a/go/pkg/ast/loxvalue.go
+++ b/go/pkg/ast/loxvalue.go
@@ -1,6 +1,9 @@
 package ast
 
-import "fmt"
+import (
+	"fmt"
+	"strconv"
+)
 
 type Kind uint8
 
@@ -35,7 +38,7 @@ func NewBooleanValue(v bool) *BooleanValue {
 }
 func (b BooleanValue) Kind() Kind     { return Boolean }
 func (b BooleanValue) IsTruthy() bool { return b.Value }
-func (b BooleanValue) String() string { return fmt.Sprintf("%v", b.Value) }
+func (b BooleanValue) String() string { return strconv.FormatBool(b.Value) }
 func (b BooleanValue) Equals(v LoxValue) bool {
 	if v, ok := v.(*BooleanValue); ok {
 		return b.Value == v.Value
diff --git a/go/pkg/ast/visitor.go b/go/pkg/ast/visitor.go
index 314f87c..6a2e1a0 100644
--- a/go/pkg/ast/visitor.go
+++ b/go/pkg/ast/visitor.go
@@ -9,26 +9,26 @@ type Statement interface {
 }
 
 type Visitor interface {
-	VisitAssignmentExpression(*AssignmentExpression)
-	VisitBinaryExpression(*BinaryExpression)
-	VisitCallExpression(*CallExpression)
-	VisitGetExpression(*GetExpression)
-	VisitGroupingExpression(*GroupingExpression)
-	VisitLiteralExpression(*LiteralExpression)
-	VisitLogicalExpression(*LogicalExpression)
-	VisitSetExpression(*SetExpression)
-	VisitSuperExpression(*SuperExpression)
-	VisitThisExpression(*ThisExpression)
-	VisitUnaryExpression(*UnaryExpression)
-	VisitVariableExpression(*VariableExpression)
+	VisitAssignmentExpression(assignementExpression *AssignmentExpression)
+	VisitBinaryExpression(binaryExpression *BinaryExpression)
+	VisitCallExpression(callExpression *CallExpression)
+	VisitGetExpression(getExpression *GetExpression)
+	VisitGroupingExpression(groupingExpression *GroupingExpression)
+	VisitLiteralExpression(literalExpression *LiteralExpression)
+	VisitLogicalExpression(logicalExpression *LogicalExpression)
+	VisitSetExpression(setExpression *SetExpression)
+	VisitSuperExpression(superExpression *SuperExpression)
+	VisitThisExpression(thisExpression *ThisExpression)
+	VisitUnaryExpression(unaryExpression *UnaryExpression)
+	VisitVariableExpression(variableExpression *VariableExpression)
 
-	VisitBlockStatement(*BlockStatement)
-	VisitClassStatement(*ClassStatement)
-	VisitExpressionStatement(*ExpressionStatement)
-	VisitFunctionStatement(*FunctionStatement)
-	VisitIfStatement(*IfStatement)
-	VisitPrintStatement(*PrintStatement)
-	VisitReturnStatement(*ReturnStatement)
-	VisitVariableStatement(*VariableStatement)
-	VisitWhileStatement(*WhileStatement)
+	VisitBlockStatement(blockStatement *BlockStatement)
+	VisitClassStatement(classStatement *ClassStatement)
+	VisitExpressionStatement(expressionStatement *ExpressionStatement)
+	VisitFunctionStatement(functionStatement *FunctionStatement)
+	VisitIfStatement(ifStatement *IfStatement)
+	VisitPrintStatement(printStatement *PrintStatement)
+	VisitReturnStatement(returnStatement *ReturnStatement)
+	VisitVariableStatement(variableStatement *VariableStatement)
+	VisitWhileStatement(whileStatement *WhileStatement)
 }
diff --git a/go/pkg/lexer/token.go b/go/pkg/lexer/token.go
index 6aa6f80..624eedf 100644
--- a/go/pkg/lexer/token.go
+++ b/go/pkg/lexer/token.go
@@ -25,7 +25,7 @@ func (t *Token) String() string {
 		return fmt.Sprintf("%v (value:%v)", tokenRepresentation[t.Type], t.Literal.String())
 	}
 
-	return fmt.Sprintf("%v", tokenRepresentation[t.Type])
+	return tokenRepresentation[t.Type]
 }
 
 const (
diff --git a/go/pkg/runtime/loxcallable.go b/go/pkg/runtime/loxcallable.go
index 22d36c6..78df481 100644
--- a/go/pkg/runtime/loxcallable.go
+++ b/go/pkg/runtime/loxcallable.go
@@ -3,7 +3,7 @@ package runtime
 import "github.com/fpotier/lox/go/pkg/ast"
 
 type LoxCallable interface {
-	Call(*Interpreter, []ast.LoxValue) ast.LoxValue
+	Call(interpreter *Interpreter, arguments []ast.LoxValue) ast.LoxValue
 	Arity() int
 }