diff --git a/compression.go b/compression.go
index fe1079ed..c5a8a63a 100644
--- a/compression.go
+++ b/compression.go
@@ -20,7 +20,7 @@ const (
 
 var (
 	flateWriterPools [maxCompressionLevel - minCompressionLevel + 1]sync.Pool
-	flateReaderPool  = sync.Pool{New: func() interface{} {
+	flateReaderPool  = sync.Pool{New: func() any {
 		return flate.NewReader(nil)
 	}}
 )
diff --git a/conn.go b/conn.go
index 9562ffd4..7ab1c62a 100644
--- a/conn.go
+++ b/conn.go
@@ -227,9 +227,9 @@ func isValidReceivedCloseCode(code int) bool {
 // interface.  The type of the value stored in a pool is not specified.
 type BufferPool interface {
 	// Get gets a value from the pool or returns nil if the pool is empty.
-	Get() interface{}
+	Get() any
 	// Put adds a value to the pool.
-	Put(interface{})
+	Put(any)
 }
 
 // writePoolData is the type added to the write buffer pool. This wrapper is
diff --git a/conn_test.go b/conn_test.go
index 28f5c4a3..cb35f035 100644
--- a/conn_test.go
+++ b/conn_test.go
@@ -227,16 +227,16 @@ func TestControl(t *testing.T) {
 
 // simpleBufferPool is an implementation of BufferPool for TestWriteBufferPool.
 type simpleBufferPool struct {
-	v interface{}
+	v any
 }
 
-func (p *simpleBufferPool) Get() interface{} {
+func (p *simpleBufferPool) Get() any {
 	v := p.v
 	p.v = nil
 	return v
 }
 
-func (p *simpleBufferPool) Put(v interface{}) {
+func (p *simpleBufferPool) Put(v any) {
 	p.v = v
 }
 
diff --git a/json.go b/json.go
index dc2c1f64..123b7184 100644
--- a/json.go
+++ b/json.go
@@ -12,7 +12,7 @@ import (
 // WriteJSON writes the JSON encoding of v as a message.
 //
 // Deprecated: Use c.WriteJSON instead.
-func WriteJSON(c *Conn, v interface{}) error {
+func WriteJSON(c *Conn, v any) error {
 	return c.WriteJSON(v)
 }
 
@@ -20,7 +20,7 @@ func WriteJSON(c *Conn, v interface{}) error {
 //
 // See the documentation for encoding/json Marshal for details about the
 // conversion of Go values to JSON.
-func (c *Conn) WriteJSON(v interface{}) error {
+func (c *Conn) WriteJSON(v any) error {
 	w, err := c.NextWriter(TextMessage)
 	if err != nil {
 		return err
@@ -37,7 +37,7 @@ func (c *Conn) WriteJSON(v interface{}) error {
 // it in the value pointed to by v.
 //
 // Deprecated: Use c.ReadJSON instead.
-func ReadJSON(c *Conn, v interface{}) error {
+func ReadJSON(c *Conn, v any) error {
 	return c.ReadJSON(v)
 }
 
@@ -46,7 +46,7 @@ func ReadJSON(c *Conn, v interface{}) error {
 //
 // See the documentation for the encoding/json Unmarshal function for details
 // about the conversion of JSON to a Go value.
-func (c *Conn) ReadJSON(v interface{}) error {
+func (c *Conn) ReadJSON(v any) error {
 	_, r, err := c.NextReader()
 	if err != nil {
 		return err