diff --git a/docker-compose.yml b/docker-compose.yml
index 67ce7a8..d5f0f03 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -19,7 +19,7 @@ services:
       - matrix
 
   db:
-    image: docker.io/postgres:12.22-alpine@sha256:97925462a8fad6d67d270c3e6119f9c22b711bae37782430acb04e6cdfdbae78
+    image: docker.io/postgres:12.22-alpine@sha256:3ffb16819255d9439252e1409a5f33e2c96201be134dd37b41e7d3340003ee5c
     restart: unless-stopped
     environment:
       - POSTGRES_USER=${DC_MATRIX_POSTGRES_USER:-synapse}