diff --git a/Dockerfile b/Dockerfile
index 6d925355..719e0834 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM openjdk:17-slim
+FROM openjdk:17-slim@sha256:aaa3b3cb27e3e520b8f116863d0580c438ed55ecfa0bc126b41f68c3f62f9774
 WORKDIR /workspace/app
 
 COPY . .
diff --git a/docker-compose-springboot-postgres.yaml b/docker-compose-springboot-postgres.yaml
index 7912b5e5..a6be8850 100644
--- a/docker-compose-springboot-postgres.yaml
+++ b/docker-compose-springboot-postgres.yaml
@@ -13,7 +13,7 @@ services:
       - pagopa-ecommerce-net
 
   postgres:
-    image: postgres:latest
+    image: postgres:latest@sha256:026d0ab72b34310b68160ab9299aa1add5544e4dc3243456b94f83cb1c119c2c
     ports:
       - "5432:5432"
     environment:
@@ -25,7 +25,7 @@ services:
     
   postgres-liquibase:
     container_name: postgres-liquibase
-    image: liquibase/liquibase
+    image: liquibase/liquibase@sha256:b940077d0581d7d425e1eb27a5a0c8b1e92398bc592868539db1c8e30ce9c75b
     environment:
       - POSTGRES_USER=${POSTGRES_USER}
       - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}