diff --git a/rpc/websocket.go b/rpc/websocket.go
index afeb4c2081b84..5e3ff49ce5acd 100644
--- a/rpc/websocket.go
+++ b/rpc/websocket.go
@@ -37,6 +37,7 @@ const (
 	wsWriteBuffer      = 1024
 	wsPingInterval     = 60 * time.Second
 	wsPingWriteTimeout = 5 * time.Second
+	wsPongTimeout      = 30 * time.Second
 	wsMessageSizeLimit = 15 * 1024 * 1024
 )
 
@@ -287,6 +288,7 @@ func (wc *websocketCodec) pingLoop() {
 			wc.jsonCodec.encMu.Lock()
 			wc.conn.SetWriteDeadline(time.Now().Add(wsPingWriteTimeout))
 			wc.conn.WriteMessage(websocket.PingMessage, nil)
+			wc.conn.SetReadDeadline(time.Now().Add(wsPongTimeout))
 			wc.jsonCodec.encMu.Unlock()
 			timer.Reset(wsPingInterval)
 		}