diff --git a/internal/memoization/memoization.go b/internal/memoization/memoization.go
index 46c347a..845c280 100644
--- a/internal/memoization/memoization.go
+++ b/internal/memoization/memoization.go
@@ -121,5 +121,5 @@ type HInt int
 
 // Hash is a method that returns the hash of the integer.
 func (h HInt) Hash() string {
-	return fmt.Sprintf("%x", sha256.Sum256([]byte(fmt.Sprintf("%d", h))))
+	return fmt.Sprintf("%x", sha256.Sum256(fmt.Appendf(nil, "%d", h)))
 }
diff --git a/internal/memoization/memoization_test.go b/internal/memoization/memoization_test.go
index 7e21232..4d63b1d 100644
--- a/internal/memoization/memoization_test.go
+++ b/internal/memoization/memoization_test.go
@@ -4,6 +4,7 @@ import (
 	"encoding/binary"
 	"fmt"
 	"os"
+	"slices"
 	"testing"
 )
 
@@ -17,8 +18,8 @@ const (
 type cacheAction struct {
 	actionType    actionType
 	key           HString
-	value         interface{}
-	expectedValue interface{}
+	value         any
+	expectedValue any
 }
 
 type testCase struct {
@@ -121,7 +122,7 @@ func TestCache(t *testing.T) {
 
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			cache := NewMemoCache[HString, interface{}](tt.capacity)
+			cache := NewMemoCache[HString, any](tt.capacity)
 			for _, action := range tt.actions {
 				switch action.actionType {
 				case set:
@@ -174,7 +175,7 @@ func FuzzCache(f *testing.F) {
 				// If the key is already in accessOrder, we remove it and append it again later
 				for index, accessedKey := range accessOrder {
 					if accessedKey == key {
-						accessOrder = append(accessOrder[:index], accessOrder[index+1:]...)
+						accessOrder = slices.Delete(accessOrder, index, index+1)
 						break
 					}
 				}
@@ -206,7 +207,7 @@ func FuzzCache(f *testing.F) {
 					// If the key was accessed, move it to the end of the accessOrder to represent recent use
 					for index, accessedKey := range accessOrder {
 						if accessedKey == key {
-							accessOrder = append(accessOrder[:index], accessOrder[index+1:]...)
+							accessOrder = slices.Delete(accessOrder, index, index+1)
 							accessOrder = append(accessOrder, key)
 							break
 						}
diff --git a/internal/runeutil/runeutil.go b/internal/runeutil/runeutil.go
index 6856cc8..3d5b288 100644
--- a/internal/runeutil/runeutil.go
+++ b/internal/runeutil/runeutil.go
@@ -61,7 +61,7 @@ func (s *sanitizer) Sanitize(runes []rune) []rune {
 	// is smaller or equal to the input.
 	copied := false
 
-	for src := 0; src < len(runes); src++ {
+	for src := range runes {
 		r := runes[src]
 		switch {
 		case r == utf8.RuneError:
diff --git a/paginator/paginator.go b/paginator/paginator.go
index 7abe326..d5b786e 100644
--- a/paginator/paginator.go
+++ b/paginator/paginator.go
@@ -185,7 +185,7 @@ func (m Model) View() string {
 
 func (m Model) dotsView() string {
 	var s string
-	for i := 0; i < m.TotalPages; i++ {
+	for i := range m.TotalPages {
 		if i == m.Page {
 			s += m.ActiveDot
 			continue
diff --git a/progress/progress.go b/progress/progress.go
index c0bc6a6..dc933df 100644
--- a/progress/progress.go
+++ b/progress/progress.go
@@ -295,7 +295,7 @@ func (m Model) barView(b *strings.Builder, percent float64, textWidth int) {
 
 	if m.useRamp {
 		// Gradient fill
-		for i := 0; i < fw; i++ {
+		for i := range fw {
 			if fw == 1 {
 				// this is up for debate: in a gradient of width=1, should the
 				// single character rendered be the first color, the last color
diff --git a/viewport/viewport_test.go b/viewport/viewport_test.go
index b64e9fd..bf504dd 100644
--- a/viewport/viewport_test.go
+++ b/viewport/viewport_test.go
@@ -374,7 +374,7 @@ func TestRightOverscroll(t *testing.T) {
 		m := New(WithHeight(5), WithWidth(len(content)+1))
 		m.SetContent(content)
 
-		for i := 0; i < 10; i++ {
+		for range 10 {
 			m.ScrollRight(m.horizontalStep)
 		}