diff --git a/tests/provision.fmf b/tests/provision.fmf
index b36a771..503a97c 100644
--- a/tests/provision.fmf
+++ b/tests/provision.fmf
@@ -2,4 +2,4 @@
 standard-inventory-qcow2:
   qemu:
     # `cargo test` usually eats more than 1G.
-    m: 2G
+    m: 4G