diff --git a/src/controllers/conversations_controller.rs b/src/controllers/conversations_controller.rs
index 81bfe79..79ae135 100644
--- a/src/controllers/conversations_controller.rs
+++ b/src/controllers/conversations_controller.rs
@@ -75,5 +75,15 @@ pub fn update_settings(r: &mut HttpRequestHandler) -> RequestResult {
         )?;
     }
 
+    // Update members list
+    if r.has_post_parameter("members") {
+        let members = r.post_numbers_list("members", 1);
+        let can_everyone_add_members = conversations_helper::can_everyone_add_members(conv_id)?;
+
+        if !is_moderator && !can_everyone_add_members {
+            r.forbidden("You can not update the list of members of this conversation!".to_string())?;
+        }
+    }
+
     r.success("Conversation information successfully updated!")
 }
\ No newline at end of file
diff --git a/src/helpers/conversations_helper.rs b/src/helpers/conversations_helper.rs
index a62efeb..86f8859 100644
--- a/src/helpers/conversations_helper.rs
+++ b/src/helpers/conversations_helper.rs
@@ -115,6 +115,14 @@ pub fn is_user_moderator(user_id: UserID, conv_id: u64) -> ResultBoxError<bool>
         .exec_count()? > 0)
 }
 
+/// Check out whether all the members of a conversation can add members to it or not
+pub fn can_everyone_add_members(conv_id: u64) -> ResultBoxError<bool> {
+    database::QueryInfo::new(CONV_LIST_TABLE)
+        .cond_u64("id", conv_id)
+        .add_field("can_everyone_add_members")
+        .query_row(|f|f.get_legacy_bool("can_everyone_add_members"))
+}
+
 /// Set whether a user is following a conversation or not
 pub fn set_following(user_id: UserID, conv_id: u64, following: bool) -> ResultBoxError<()> {
     database::UpdateInfo::new(CONV_USERS_TABLE)