diff --git a/Products/CMFPlone/PropertiesTool.py b/Products/CMFPlone/PropertiesTool.py
index e924202f91..f0ea227709 100644
--- a/Products/CMFPlone/PropertiesTool.py
+++ b/Products/CMFPlone/PropertiesTool.py
@@ -17,6 +17,7 @@
 from Products.PageTemplates.PageTemplateFile import PageTemplateFile
 from zope.component import getUtility
 from zope.component import queryUtility
+from zope.deprecation import deprecate
 from zope.interface import implementer
 
 
@@ -105,6 +106,17 @@ def title(self):
     def smtp_server(self):
         return getUtility(IMailHost).smtp_host
 
+
+    @deprecate(
+        "The portal portal_properties tool will be removed in Plone 6.1. "
+        "Use the portal_registry instead. "
+        "Check https://github.com/plone/Products.CMFPlone/issues/125 "
+        "for more details."
+    )
+    def hasProperty(self, id):
+        return super().hasProperty(id)
+
+
 InitializeClass(PropertiesTool)
 
 
@@ -124,4 +136,14 @@ def __init__(self, id, title=''):
     manage_options = (PropertyManager.manage_options
                       + SimpleItem.manage_options)
 
+    @deprecate(
+        "The portal portal_properties tool will be removed in Plone 6.1. "
+        "Use the portal_registry instead. "
+        "Check https://github.com/plone/Products.CMFPlone/issues/125 "
+        "for more details."
+    )
+    def hasProperty(self, id):
+        return super().hasProperty(id)
+
+
 InitializeClass(SimpleItemWithProperties)
diff --git a/news/125.bugfix b/news/125.bugfix
new file mode 100644
index 0000000000..951a089444
--- /dev/null
+++ b/news/125.bugfix
@@ -0,0 +1 @@
+Deprecate the portal_properties tool