diff --git a/binding/binding_nomsgpack.go b/binding/binding_nomsgpack.go
index 552a86b2..c8e61310 100644
--- a/binding/binding_nomsgpack.go
+++ b/binding/binding_nomsgpack.go
@@ -81,6 +81,7 @@ var (
 	Uri           = uriBinding{}
 	Header        = headerBinding{}
 	TOML          = tomlBinding{}
+	Plain         = plainBinding{}
 )
 
 // Default returns the appropriate Binding instance based on the HTTP method
diff --git a/context.go b/context.go
index 4fe5e7b7..0cd91067 100644
--- a/context.go
+++ b/context.go
@@ -614,7 +614,7 @@ func (c *Context) SaveUploadedFile(file *multipart.FileHeader, dst string) error
 	}
 	defer src.Close()
 
-	if err = os.MkdirAll(filepath.Dir(dst), 0750); err != nil {
+	if err = os.MkdirAll(filepath.Dir(dst), 0o750); err != nil {
 		return err
 	}
 
@@ -668,7 +668,7 @@ func (c *Context) BindTOML(obj any) error {
 }
 
 // BindPlain is a shortcut for c.MustBindWith(obj, binding.Plain).
-func (c *Context) BindPlain(obj interface{}) error {
+func (c *Context) BindPlain(obj any) error {
 	return c.MustBindWith(obj, binding.Plain)
 }
 
@@ -738,7 +738,7 @@ func (c *Context) ShouldBindTOML(obj any) error {
 }
 
 // ShouldBindPlain is a shortcut for c.ShouldBindWith(obj, binding.Plain).
-func (c *Context) ShouldBindPlain(obj interface{}) error {
+func (c *Context) ShouldBindPlain(obj any) error {
 	return c.ShouldBindWith(obj, binding.Plain)
 }