diff --git a/test161/tests/vm/quinthuge.t b/test161/tests/vm/quinthuge.t
index f1d5762..db1cbb2 100644
--- a/test161/tests/vm/quinthuge.t
+++ b/test161/tests/vm/quinthuge.t
@@ -7,6 +7,8 @@ depends: [not-dumbvm-vm]
 sys161:
   cpus: 2
   ram: 16M
+monitor:
+  progresstimeout: 15.0
 ---
 khu
 $ /testbin/quinthuge
diff --git a/test161/tests/vm/sbrktest.t b/test161/tests/vm/sbrktest.t
index e39496d..d527b5c 100644
--- a/test161/tests/vm/sbrktest.t
+++ b/test161/tests/vm/sbrktest.t
@@ -7,6 +7,8 @@ tags: [sbrk]
 depends: [not-dumbvm-vm, shell]
 sys161:
   ram: 2M
+monitor:
+  progresstimeout: 15.0
 ---
 khu
 $ /testbin/sbrktest 1