diff --git a/docker-compose.yml b/docker-compose.yml
index a578d71..c9d9fdb 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,7 +1,7 @@
 version: '3'
 services:
   ach:
-    image: moov/ach:v1.33.3
+    image: moov/ach:v1.33.4
     ports:
       - "8080:8080"
   demo: