diff --git a/README.md b/README.md
index 30415e5..a53007c 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,11 @@ The WEB GUI client of SEA.
 
 This repository contains the code of the server for the control and graphical parts, plus the client code (HTML, CSS, JS).
 
+**IMPORTANT**
+
+This version has an update frequency of 5 seconds in order to have a software that can be used for a certain amount of time without crashing (due to memory leaks of ChartJS 2.9.4).
+A migration attempt can be found on the branch `chartjs-migration`.
+
 **Summary**
 
 - [Documentation](#documentation)
diff --git a/seaweb.py b/seaweb.py
index 0bb15b7..7175095 100755
--- a/seaweb.py
+++ b/seaweb.py
@@ -82,7 +82,7 @@ def get_update(path=None):
                     yield to_json_sse(msg)
                 if messages:
                     lastmsg = time.time()
-                    gevent.sleep(0.1)
+                    gevent.sleep(5)
                 else:
                     if time.time() > lastmsg + 30:
                         if not client.info():