diff --git a/docker-compose.yml b/docker-compose.yml
index 55e8fb5..85465bd 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -9,7 +9,7 @@ services:
     restart: unless-stopped
   db:
     container_name: kon-database
-    image: postgres:16.1-alpine3.19
+    image: postgres:16.1-alpine3.19@sha256:b1413d8f37470f1fb355ea833d91855d6e24929e8f4336984c5be0de62947a25
     restart: unless-stopped
     ports:
       - 37930:5432/tcp