diff --git a/forms/formatters.go b/forms/formatters.go
index 580d4f3..5d86551 100644
--- a/forms/formatters.go
+++ b/forms/formatters.go
@@ -15,10 +15,12 @@ var Formatters = map[string]Formatter{
 
 func capitalize(s string) string {
 	words := strings.Fields(s)
+
 	for i, word := range words {
 		if len(word) > 0 {
 			words[i] = strings.ToUpper(string(word[0])) + strings.ToLower(word[1:])
 		}
 	}
+
 	return strings.Join(words, " ")
 }
diff --git a/forms/forms.go b/forms/forms.go
index 72036de..a48fbc1 100644
--- a/forms/forms.go
+++ b/forms/forms.go
@@ -11,9 +11,11 @@ import (
 
 func FormToStruct[T any](r *http.Request) (T, error) {
 	var target T
+
 	if err := r.ParseForm(); err != nil {
 		return target, fmt.Errorf("error parsing form: %v", err)
 	}
+
 	err := UrlValuesToStruct(r.Form, &target)
 	return target, err
 }
@@ -26,7 +28,6 @@ func UrlValuesToStruct(form url.Values, dst any) error {
 
 	v = v.Elem()
 	t := v.Type()
-
 	for i := 0; i < t.NumField(); i++ {
 		field := t.Field(i)
 		fieldValue := v.Field(i)
@@ -119,24 +120,28 @@ func castStringToType(value string, kind reflect.Kind) (any, error) {
 	switch kind {
 	case reflect.String:
 		return value, nil
+
 	case reflect.Int, reflect.Int64:
 		new, err := strconv.Atoi(value)
 		if err != nil {
 			return nil, fmt.Errorf("failed to cast string to integer: %v", err)
 		}
 		return new, nil
+
 	case reflect.Float32, reflect.Float64:
 		new, err := strconv.ParseFloat(value, 64)
 		if err != nil {
 			return nil, fmt.Errorf("failed to cast string to float64: %v", err)
 		}
 		return new, nil
+
 	case reflect.Bool:
 		new, err := strconv.ParseBool(value)
 		if err != nil {
 			return nil, fmt.Errorf("failed to cast string to boolean: %v", err)
 		}
 		return new, nil
+
 	default:
 		return nil, fmt.Errorf("unsupported kind: %s", kind)
 	}
@@ -146,13 +151,16 @@ func parseFormatters(tag string) []func(string) string {
 	if tag == "" {
 		return nil
 	}
-	parts := strings.Split(tag, ",")
+
 	var fns []func(string) string
-	for _, p := range parts {
+
+	parts := strings.SplitSeq(tag, ",")
+	for p := range parts {
 		if fn, ok := Formatters[strings.TrimSpace(p)]; ok {
 			fns = append(fns, fn)
 		}
 	}
+
 	return fns
 }
 
@@ -163,12 +171,14 @@ func parseValidators(tag string) []struct {
 	if tag == "" {
 		return nil
 	}
+
 	var result []struct {
 		Name  string
 		Param string
 	}
-	parts := strings.Split(tag, ",")
-	for _, part := range parts {
+
+	parts := strings.SplitSeq(tag, ",")
+	for part := range parts {
 		pair := strings.SplitN(part, ":", 2)
 		if len(pair) == 2 {
 			result = append(result, struct{ Name, Param string }{pair[0], pair[1]})
@@ -176,5 +186,6 @@ func parseValidators(tag string) []struct {
 			result = append(result, struct{ Name, Param string }{pair[0], ""})
 		}
 	}
+
 	return result
 }
diff --git a/forms/validators.go b/forms/validators.go
index 1615233..8c822b2 100644
--- a/forms/validators.go
+++ b/forms/validators.go
@@ -2,9 +2,9 @@ package forms
 
 import (
 	"fmt"
+	"net/mail"
 	"reflect"
 	"strconv"
-	"net/mail"
 )
 
 type Validator func(fieldName string, value any, param string) error
diff --git a/mail/smtp.go b/mail/smtp.go
index c494eb1..d4692db 100644
--- a/mail/smtp.go
+++ b/mail/smtp.go
@@ -183,9 +183,11 @@ func (s *Auth) write(writer *multipart.Writer, contentType, content string) erro
 	partHeader := make(textproto.MIMEHeader)
 	partHeader.Set("Content-Type", contentType)
 	part, err := writer.CreatePart(partHeader)
+
 	if err != nil {
 		return fmt.Errorf("failed to create part: %w", err)
 	}
+
 	_, err = part.Write([]byte(content))
 	return err
 }
@@ -195,9 +197,11 @@ func (s *Auth) attach(writer *multipart.Writer, filename string, fileBuffer *byt
 	attachmentHeader.Set("Content-Type", "application/octet-stream")
 	attachmentHeader.Set("Content-Disposition", fmt.Sprintf(`attachment; filename="%s"`, filename))
 	attachment, err := writer.CreatePart(attachmentHeader)
+
 	if err != nil {
 		return fmt.Errorf("failed to create attachment part: %w", err)
 	}
+
 	_, err = attachment.Write(fileBuffer.Bytes())
 	return err
 }
diff --git a/middleware/middleware.go b/middleware/middleware.go
index bcb5a96..961914d 100644
--- a/middleware/middleware.go
+++ b/middleware/middleware.go
@@ -9,6 +9,7 @@ func Stack(xs ...Middleware) Middleware {
 		for i := len(xs) - 1; i >= 0; i-- {
 			next = xs[i](next)
 		}
+
 		return next
 	}
 }