diff --git a/docker-compose.yml b/docker-compose.yml
index dc33724..12f3bac 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -11,7 +11,7 @@ services:
       - db
   db:
     container_name: rustbot-database
-    image: postgres:16.2-alpine3.19
+    image: postgres:16.2-alpine3.19@sha256:1d74239810c19ed0dbb317acae40974e673865b2d565a0d369e206159d483957
     restart: unless-stopped
     ports:
       - 37931:5432/tcp