diff --git a/_config.yml b/_config.yml
index 18f2baa..d1fdddb 100644
--- a/_config.yml
+++ b/_config.yml
@@ -114,9 +114,9 @@ assets:
     env: # [development|production]
 
 pwa:
-  enabled: false # the option for PWA feature (installable)
+  enabled: true # the option for PWA feature (installable)
   cache:
-    enabled: false # the option for PWA offline cache
+    enabled: true # the option for PWA offline cache
     # Paths defined here will be excluded from the PWA cache.
     # Usually its value is the `baseurl` of another website that
     # shares the same domain name as the current website.