diff --git a/config/orthanc/postgresql.json b/config/orthanc/postgresql.json
index d7cf8ba..a57a2ea 100644
--- a/config/orthanc/postgresql.json
+++ b/config/orthanc/postgresql.json
@@ -4,8 +4,8 @@
     "EnableStorage": false,
     "Host": "postgres",
     "Port": 5432,
-    "Database": "orthanc",
-    "Username": "postgres",
-    "Password": "password"
+    "Database": "${POSTGRES_DB:-orthanc}",
+    "Username": "${POSTGRES_USER:-postgres}",
+    "Password": "${POSTGRES_PASSWORD}"
   }
 }