diff --git a/Dockerfile b/Dockerfile
index ceb9102..a2ccd4d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,6 @@ ARG POSTGRES_TAG=17.5
 FROM postgres:$POSTGRES_TAG
 
 ENV POSTGRES_USER=world
-ENV POSTGRES_PASSWORD=world123
 ENV POSTGRES_DB=world-db
 
 # Copier les scripts SQL dans : 
diff --git a/README.md b/README.md
index c7514cf..bd9188d 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ This database contains 4 tables :
 You can run a Docker container with this command (replace _xxxx_ by your local port) :
 
 ```shell
-docker run -d -p xxxx:5432 ghusta/postgres-world-db:2.12
+docker run -d -p xxxx:5432 -e POSTGRES_PASSWORD=world123 ghusta/postgres-world-db:2.12
 ```
 
 # PostgreSQL configuration