diff --git a/_config.yml b/_config.yml
index c982186..03b1889 100644
--- a/_config.yml
+++ b/_config.yml
@@ -123,7 +123,7 @@ assets:
     enabled: false # boolean, keep empty means false
     # specify the Jekyll environment, empty means both
     # only works if `assets.self_host.enabled` is 'true'
-    env: development # [development | production]
+    env: production # [development | production]
 
 pwa:
   enabled: true # the option for PWA feature (installable)