diff --git a/.build/Caddyfile b/.build/Caddyfile
index 6301949..63fb30a 100644
--- a/.build/Caddyfile
+++ b/.build/Caddyfile
@@ -9,4 +9,7 @@
 		X-Frame-Options DENY
 		Referrer-Policy strict-origin-when-cross-origin
 	}
+
+	@hashed path /assets/*
+	header @hashed Cache-Control "public, max-age=31536000, immutable"
 }