diff --git a/docker-compose.yml b/docker-compose.yml
index 4b0bc7f..940b048 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,7 +1,7 @@
 services:
   postgres:
     container_name: feedback-local-postgres
-    image: postgres:17
+    image: postgres:17@sha256:538bdb8c6b278f2f09070a4d79f04a83363a795ed23ec0d92d6b70cabc398eae
     environment:
       - POSTGRES_USER=postgres
       - POSTGRES_PASSWORD=postgres