diff --git a/templates/invoice-ninja/0/docker-compose.yml b/templates/invoice-ninja/0/docker-compose.yml
index 4d611d9..d732f87 100644
--- a/templates/invoice-ninja/0/docker-compose.yml
+++ b/templates/invoice-ninja/0/docker-compose.yml
@@ -7,6 +7,7 @@ services:
       - APP_DEBUG='false'
       - APP_URL='http://localhost:${WEB_PORT}'
       - APP_CIPHER='AES-256-CBC'
+      - APP_KEY='${APP_KEY}'
       - DB_TYPE='mysql'
       - DB_STRICT='false'
       - DB_HOST='mysql'
@@ -39,6 +40,7 @@ services:
       - APP_DEBUG='false'
       - APP_URL='http://localhost:${WEB_PORT}'
       - APP_CIPHER='AES-256-CBC'
+      - APP_KEY='${APP_KEY}'
       - DB_TYPE='mysql'
       - DB_STRICT='false'
       - DB_HOST='mysql'