diff --git a/compose.yaml b/compose.yaml
index 26d1ada..4db7aec 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -1,8 +1,6 @@
 services:
   database:
-    image: pgsql:2025.09
-    build:
-      context: ./pgsql
+    image: iut/pgsql:2025-08
     environment:
       POSTGRES_INITDB_ARGS: "--locale-provider=icu --icu-locale=fr-FR"
       POSTGRES_DB: ${COMPOSE_PROJECT_NAME}
@@ -10,8 +8,10 @@ services:
       POSTGRES_USER: ${COMPOSE_PROJECT_NAME}
     volumes:
       - database_data:/var/lib/postgresql/data:rw
-      - ./pgsql/docker-entrypoint-initdb.d:/docker-entrypoint-initdb.d
-      - ./pgsql/data:/tmp
+      - ./docker-entrypoint-initdb.d:/docker-entrypoint-initdb.d
+      - ./data:/tmp
+    ports:
+      - 5432:5432
 
 volumes:
   database_data:
diff --git a/initdb.sql b/docker-entrypoint-initdb.d/initdb.sql
similarity index 100%
rename from initdb.sql
rename to docker-entrypoint-initdb.d/initdb.sql
diff --git a/exercice.md b/exercice.md
index 46e9218..85fd751 100644
--- a/exercice.md
+++ b/exercice.md
@@ -12,6 +12,14 @@ Tickets : id_ticket, date_vente, id_client
 
 LignesTicket : id_ligne, id_ticket, id_produit, quantite, prix_unitaire
 
+## Environnement
+
+### Construire l'image
+
+```shell
+docker build -t iut/pgsql:2025-08 .
+```
+
 ## Questions
 
 ### Exercice 1 : Nombre total de tickets