diff --git a/compose.yml b/compose.yml
index e80593a..b17a49e 100644
--- a/compose.yml
+++ b/compose.yml
@@ -75,6 +75,7 @@ services:
     image: 'prom/prometheus:v3.4.2'
     command:
       - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--config.expand-env'
       - '--storage.tsdb.path=/prometheus'
       - '--web.enable-lifecycle'
     env_file: