diff --git a/config.yaml.example b/config.yaml.example
index 36ab435..b369a90 100644
--- a/config.yaml.example
+++ b/config.yaml.example
@@ -1,11 +1,11 @@
-actor_pem: /actor.pem
-redis_url: redis://redis:6379
+ACTOR_PEM: /actor.pem
+REDIS_URL: redis://redis:6379
 
-relay_bind: 0.0.0.0:8080
-relay_domain: relay.toot.yukimochi.jp
-relay_servicename: YUKIMOCHI Toot Relay Service
-job_concurrency: 50
-# relay_summary: |
+RELAY_BIND: 0.0.0.0:8080
+RELAY_DOMAIN: relay.toot.yukimochi.jp
+RELAY_SERVICENAME: YUKIMOCHI Toot Relay Service
+JOB_CONCURRENCY: 50
+# RELAY_SUMMARY: |
 
-# relay_icon: https://
-# relay_image: https://
+# RELAY_ICON: https://
+# RELAY_IMAGE: https://