diff --git a/static_src/timer.js b/static_src/timer.js
index 6717ea4332a8d1adc8cc11452a26c502cc9f3086..ba838ffb0f3163564482923a8b3094be918a1699 100644
--- a/static_src/timer.js
+++ b/static_src/timer.js
@@ -34,7 +34,7 @@ $(window).ready(
         })
 
         const timerSocket = new WebSocket(
-            "ws://"
+            "wss://"
             + window.location.host
             + "/ws/timer/"
         )