diff --git a/.env.sample b/.env.sample
index 5a7a748..2dee3e4 100644
--- a/.env.sample
+++ b/.env.sample
@@ -1,2 +1,6 @@
-DATABASE_URL=postgres://icarus:password@localhost/icarus
-SECRET_KEY=refero34o8rfhfjn983thf39fhc943rf923n3h
\ No newline at end of file
+SECRET_KEY=refero34o8rfhfjn983thf39fhc943rf923n3h
+POSTGRES_USER=icarus
+POSTGRES_PASSWORD=password
+POSTGRES_DB=icarus_db
+POSTGRES_HOST=main_db
+DATABASE_URL=postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@${POSTGRES_HOST}/${POSTGRES_HOST}
\ No newline at end of file