diff --git a/app/etc/blog.yaml b/app/etc/blog.yaml
index 1b24796..d98eb76 100644
--- a/app/etc/blog.yaml
+++ b/app/etc/blog.yaml
@@ -5,7 +5,7 @@ Port: 8888
 JWT:
   Secret: "${JWT_SECRET}"
   Issuer: "${JWT_ISSUER}"
-  ExpiresIn: "${JWT_EXPIRES_IN}"
+  ExpiresIn: ${JWT_EXPIRES_IN}
 
 Database:
   DSN: "${DATABASE_DSN}"
@@ -16,4 +16,4 @@ S3:
   AccessKeyID: "${S3_ACCESS_KEY_ID}"
   SecretAccessKey: "${S3_SECRET_ACCESS_KEY}"
   Endpoint: "${S3_ENDPOINT}"
-  PresignedURLExpiration: "${S3_PRESIGNED_URL_EXPIRATION}"
+  PresignedURLExpiration: ${S3_PRESIGNED_URL_EXPIRATION}