diff --git a/rome/fly.toml b/rome/fly.toml
index 8721e8a..fe8ffbd 100644
--- a/rome/fly.toml
+++ b/rome/fly.toml
@@ -11,7 +11,9 @@ auto_stop_machines = false
 auto_start_machines = false
 
 [http_service.http_options]
-h2_backend = true
+# Disabled because it causes HTTP/2 client requests to fail.
+# Looks like a Fly proxy issue.
+#h2_backend = true
 
 [http_service.concurrency]
 type = "requests"