diff --git a/semaphore/docker-compose.yml b/semaphore/docker-compose.yml
index d74bd5d..14ed757 100644
--- a/semaphore/docker-compose.yml
+++ b/semaphore/docker-compose.yml
@@ -6,7 +6,6 @@ services:
     ports:
       - 3000:3000
     environment:
-      TZ: America/Detroit
       SEMAPHORE_DB_USER: "${semaphore_db_user}"
       SEMAPHORE_DB_PASS: "${semaphore_db_pass}"
       SEMAPHORE_DB_HOST: "${semaphore_db_host}"