diff --git a/deploy/docker/docker-compose.yaml b/deploy/docker/docker-compose.yaml
index 7ba116b2f..4dc50803c 100644
--- a/deploy/docker/docker-compose.yaml
+++ b/deploy/docker/docker-compose.yaml
@@ -66,10 +66,10 @@ services:
       LOWCODER_ADMIN_SMTP_PORT: 587
       LOWCODER_ADMIN_SMTP_USERNAME: 
       LOWCODER_ADMIN_SMTP_PASSWORD: 
-      LOWCODER_ADMIN_SMTP_AUTH: true
-      LOWCODER_ADMIN_SMTP_SSL_ENABLED: false
-      LOWCODER_ADMIN_SMTP_STARTTLS_ENABLED: true
-      LOWCODER_ADMIN_SMTP_STARTTLS_REQUIRED: true
+      LOWCODER_ADMIN_SMTP_AUTH: "true"
+      LOWCODER_ADMIN_SMTP_SSL_ENABLED: "false"
+      LOWCODER_ADMIN_SMTP_STARTTLS_ENABLED: "true"
+      LOWCODER_ADMIN_SMTP_STARTTLS_REQUIRED: "true"
       # Email used as sender in lost password email
       LOWCODER_EMAIL_NOTIFICATIONS_SENDER: info@localhost
     volumes: