diff --git a/source/_headers b/source/_headers
index 51b1f07..a2870ae 100644
--- a/source/_headers
+++ b/source/_headers
@@ -12,7 +12,7 @@
 /*.html
   Cache-Control: max-age=86400, public
 /*.css
-  Cache-Control: max-age=86400, public
+  Cache-Control: max-age=604800, public
 /*.js
   Cache-Control: max-age=604800, public
 /*.gif