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..8ab75361 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@sha256:87ec5e0a167dc7d4831729f9e1d2ee7b8597dcc49ccd9e43cc5f89e808d2adae
     ports:
       - "5432:5432"
     environment:
@@ -25,7 +25,7 @@ services:
     
   postgres-liquibase:
     container_name: postgres-liquibase
-    image: liquibase/liquibase
+    image: liquibase/liquibase@sha256:488147049b0a23ad04940c80b88385af1e0d9e67ce5dc7b3fbdb76281d620401
     environment:
       - POSTGRES_USER=${POSTGRES_USER}
       - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}