diff --git a/compose.yml b/compose.yml
index c67d46b..f7258bf 100644
--- a/compose.yml
+++ b/compose.yml
@@ -22,7 +22,8 @@ services:
     read_only: true
     cap_drop: [ALL]
     security_opt: [no-new-privileges:true]
-    tmpfs: [/tmp:rw,noexec,nosuid,size=64m]
+    tmpfs:
+      - "/tmp:rw,noexec,nosuid,size=64m"
     mem_limit: 512m
     pids_limit: 128
     expose: