diff --git a/docker-compose.yml b/docker-compose.yml
index 5b6be0f..152213f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '3'
+version: '3.8'
 services:
   telegraf-docker:
     image: telegraf
@@ -21,7 +21,6 @@ services:
       - ./promtail:/etc/promtail
       - /var/run/docker.sock:/var/run/docker.sock
       - /var/log:/var/log:ro
-    command: [
-      "-config.file=/etc/promtail/promtail-config.yml",
-      "-config.expand-env=true"
-    ]
+    command:
+      - "-config.file=/etc/promtail/promtail-config.yml"
+      - "-config.expand-env=true"