diff --git a/heat-stack/fly.toml b/heat-stack/fly.toml
index 3b9a3200..14e23b82 100644
--- a/heat-stack/fly.toml
+++ b/heat-stack/fly.toml
@@ -3,6 +3,7 @@ primary_region = "bos"
 kill_signal = "SIGINT"
 kill_timeout = 5
 processes = [ ]
+swap_size_mb = 512
 
 [experimental]
 allowed_public_ports = [ ]