diff --git a/hosts/ocaml/bin/sx_server.ml b/hosts/ocaml/bin/sx_server.ml
index 4434de68..193394de 100644
--- a/hosts/ocaml/bin/sx_server.ml
+++ b/hosts/ocaml/bin/sx_server.ml
@@ -2658,10 +2658,30 @@ let http_mode port =
   Unix.bind sock (Unix.ADDR_INET (Unix.inet_addr_any, port));
   Unix.listen sock 1024;
   Printf.eprintf "[sx-http] Listening on port %d (%d render workers, non-blocking)\n%!" port n_workers;
+
+  (* Auto-restart: check if binary has changed every N requests *)
+  let binary_path = Sys.executable_name in
+  let binary_mtime = try (Unix.stat binary_path).Unix.st_mtime with _ -> 0.0 in
+  let request_count = ref 0 in
+  let check_interval = 10 in  (* check every 10 requests *)
+  let check_restart () =
+    incr request_count;
+    if !request_count mod check_interval = 0 then begin
+      let current_mtime = try (Unix.stat binary_path).Unix.st_mtime with _ -> 0.0 in
+      if current_mtime > binary_mtime then begin
+        Printf.eprintf "[sx-http] Binary changed, restarting...\n%!";
+        (* Close listen socket, then exec self *)
+        Unix.close sock;
+        Unix.execv binary_path (Array.of_list (Array.to_list Sys.argv))
+      end
+    end
+  in
+
   (try
     while true do
       (* Accept a connection *)
       let (client, _addr) = Unix.accept sock in
+      check_restart ();
       (* Read request — non-blocking: set a short timeout *)
       Unix.setsockopt_float client Unix.SO_RCVTIMEO 5.0;
       Unix.setsockopt_float client Unix.SO_SNDTIMEO 10.0;