diff --git a/reference/mongo/mongodb/authenticate.xml b/reference/mongo/mongodb/authenticate.xml
index 8945230a87..8e890502a0 100644
--- a/reference/mongo/mongodb/authenticate.xml
+++ b/reference/mongo/mongodb/authenticate.xml
@@ -6,6 +6,15 @@
   <refname>MongoDB::authenticate</refname>
   <refpurpose>Log in to this database</refpurpose>
  </refnamediv>
+
+ <refsynopsisdiv role="soft-deprecation-notice">
+  <sidebar>
+   &mongo.noalternative.method.note;
+   <para>Instead, you need to provide credentials through the connection
+   string.</para>
+  </sidebar>
+ </refsynopsisdiv>
+
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>