diff --git a/deploy/files/sites-available/impress.conf b/deploy/files/sites-available/impress.conf
index df3d1ff7..cbb3ae4f 100644
--- a/deploy/files/sites-available/impress.conf
+++ b/deploy/files/sites-available/impress.conf
@@ -17,6 +17,18 @@ server {
 
   root /srv/impress/current/public;
 
+  # Serve assets using their precompressed *.gz versions.
+  # The filenames contain content hashes, so they should be safe to
+  # cache forever.
+  # https://stackoverflow.com/a/6952804/107415
+  location ~ ^/assets/ {
+    gzip_static on;
+    expires     max;
+    add_header  Cache-Control public;
+    add_header  Last-Modified "";
+    add_header  ETag "";
+  }
+
   # Try serving static files first. If not found, fall back to the app.
   try_files $uri/index.html $uri @app;