diff --git a/README.md b/README.md
index 600f9d0..3668636 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,7 @@ version: '3.8'
 services:
   clam:
     image: git.nixc.us/colin/clam:production
+    read_only: true
     volumes:
       - /:/scan
       - ./logs:/var/log/clamav