Hide 2018-09 releases
diff --git a/downloads/hidden.txt b/downloads/hidden.txt
index e69de29..7d13647 100644
--- a/downloads/hidden.txt
+++ b/downloads/hidden.txt
@@ -0,0 +1,2 @@
+mmt/3.9.0/R201809110720

+mmt/0.16.0/R201809110855