diff --git a/clearml/utilities/proxy_object.py b/clearml/utilities/proxy_object.py
index 2b72df49..1b0c6ca1 100644
--- a/clearml/utilities/proxy_object.py
+++ b/clearml/utilities/proxy_object.py
@@ -39,9 +39,11 @@ class ProxyDictPostWrite(dict):
         return a_dict
 
     def update(self, E=None, **F):
-        return super(ProxyDictPostWrite, self).update(
+        res = super(ProxyDictPostWrite, self).update(
             ProxyDictPostWrite(self._update_obj, self._set_callback, E) if E is not None else
             ProxyDictPostWrite(self._update_obj, self._set_callback, **F))
+        self._set_callback()
+        return res
 
 
 class ProxyDictPreWrite(dict):