diff --git a/conf/nginx.conf b/conf/nginx.conf
index af84758..bffb800 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -1,3 +1,12 @@
+# Expires mappings
+map $sent_http_content_type $expires {
+        default                                 off;
+        text/html                               epoch;
+        text/css                                max;
+        application/javascript  max;
+        ~image/                                 max;
+}
+
 location ^~ /.well-known {
   # The following 6 rules are borrowed from `.htaccess`
 
@@ -63,7 +72,7 @@ location ^~ __PATH__/ {
   index index.php index.html __PATH__/index.php$request_uri;
 
   # Default Cache-Control policy
-  expires 1m;
+  expires $expires;
 
   # Rule borrowed from `.htaccess` to handle Microsoft DAV clients
   location = __PATH__/ {