diff --git a/.env.sample b/.env.sample
index 7036a86..50eab8d 100644
--- a/.env.sample
+++ b/.env.sample
@@ -1 +1,5 @@
 RECIPE=swarm-cronjob
+
+TZ=UTC
+LOG_LEVEL=info
+LOG_JSON=false
diff --git a/compose.yml b/compose.yml
index 40d5514..9e33c60 100644
--- a/compose.yml
+++ b/compose.yml
@@ -3,9 +3,9 @@ services:
   app:
     image: "crazymax/swarm-cronjob:1.9.0"
     environment:
-      - TZ=Europe/Amsterdam
-      - LOG_LEVEL=info
-      - LOG_JSON=false
+      - TZ
+      - LOG_LEVEL
+      - LOG_JSON
     volumes:
       - "/var/run/docker.sock:/var/run/docker.sock"
     deploy: